Home / 417,564,091.20-626,893,538.72-280,005,225.28

Finding the Fourth Proportional to 417,564,091.20, 626,893,538.72 and 280,005,225.28

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Solution

The fourth proportional to 417,564,091.20, 626,893,538.72 and 280,005,225.28 is: 420,374,908.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,564,091.20 : 626,893,538.72 = 280,005,225.28 : x
  2. Step 2: Convert to fraction form
    417,564,091.20/626,893,538.72 = 280,005,225.28/x
  3. Step 3: Cross multiply
    417,564,091.20x = 626,893,538.72 × 280,005,225.28
  4. Step 4: Simplify right side
    417,564,091.20x = 175,533,466,535,869,984
  5. Step 5: Solve for x
    x = 175,533,466,535,869,984/417,564,091.20
  6. Step 6: Final answer
    x = 420,374,908.27

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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.