Home / 572,281,479.40-857,540,420.70-426,028,916.20

Finding the Fourth Proportional to 572,281,479.40, 857,540,420.70 and 426,028,916.20

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Solution

The fourth proportional to 572,281,479.40, 857,540,420.70 and 426,028,916.20 is: 638,386,928.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,281,479.40 : 857,540,420.70 = 426,028,916.20 : x
  2. Step 2: Convert to fraction form
    572,281,479.40/857,540,420.70 = 426,028,916.20/x
  3. Step 3: Cross multiply
    572,281,479.40x = 857,540,420.70 × 426,028,916.20
  4. Step 4: Simplify right side
    572,281,479.40x = 365,337,016,028,513,024
  5. Step 5: Solve for x
    x = 365,337,016,028,513,024/572,281,479.40
  6. Step 6: Final answer
    x = 638,386,928.77

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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.