Home / 898,631,246.40-1,347,946,869.60-217,826,894.40

Finding the Fourth Proportional to 898,631,246.40, 1,347,946,869.60 and 217,826,894.40

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Solution

The fourth proportional to 898,631,246.40, 1,347,946,869.60 and 217,826,894.40 is: 326,740,341.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,631,246.40 : 1,347,946,869.60 = 217,826,894.40 : x
  2. Step 2: Convert to fraction form
    898,631,246.40/1,347,946,869.60 = 217,826,894.40/x
  3. Step 3: Cross multiply
    898,631,246.40x = 1,347,946,869.60 × 217,826,894.40
  4. Step 4: Simplify right side
    898,631,246.40x = 293,619,080,421,169,728
  5. Step 5: Solve for x
    x = 293,619,080,421,169,728/898,631,246.40
  6. Step 6: Final answer
    x = 326,740,341.60

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Half scale
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Double scale
Find fourth proportional to 898,631,247.40, 1,347,946,871.10 and 217,826,895.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.