Home / 30,240,280.40-45,360,420.60-10,045,522.40

Finding the Fourth Proportional to 30,240,280.40, 45,360,420.60 and 10,045,522.40

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Solution

The fourth proportional to 30,240,280.40, 45,360,420.60 and 10,045,522.40 is: 15,068,283.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,240,280.40 : 45,360,420.60 = 10,045,522.40 : x
  2. Step 2: Convert to fraction form
    30,240,280.40/45,360,420.60 = 10,045,522.40/x
  3. Step 3: Cross multiply
    30,240,280.40x = 45,360,420.60 × 10,045,522.40
  4. Step 4: Simplify right side
    30,240,280.40x = 455,669,121,210,721.50
  5. Step 5: Solve for x
    x = 455,669,121,210,721.50/30,240,280.40
  6. Step 6: Final answer
    x = 15,068,283.60

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Double scale
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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.