Home / 898,156,909.80-1,347,235,364.70-438,390,023.40

Finding the Fourth Proportional to 898,156,909.80, 1,347,235,364.70 and 438,390,023.40

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Solution

The fourth proportional to 898,156,909.80, 1,347,235,364.70 and 438,390,023.40 is: 657,585,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,156,909.80 : 1,347,235,364.70 = 438,390,023.40 : x
  2. Step 2: Convert to fraction form
    898,156,909.80/1,347,235,364.70 = 438,390,023.40/x
  3. Step 3: Cross multiply
    898,156,909.80x = 1,347,235,364.70 × 438,390,023.40
  4. Step 4: Simplify right side
    898,156,909.80x = 590,614,543,056,140,544
  5. Step 5: Solve for x
    x = 590,614,543,056,140,544/898,156,909.80
  6. Step 6: Final answer
    x = 657,585,035.10

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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.