Home / 563,861,937.36-778,066,362.20-312,976,905.04

Finding the Fourth Proportional to 563,861,937.36, 778,066,362.20 and 312,976,905.04

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Solution

The fourth proportional to 563,861,937.36, 778,066,362.20 and 312,976,905.04 is: 431,873,098.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,861,937.36 : 778,066,362.20 = 312,976,905.04 : x
  2. Step 2: Convert to fraction form
    563,861,937.36/778,066,362.20 = 312,976,905.04/x
  3. Step 3: Cross multiply
    563,861,937.36x = 778,066,362.20 × 312,976,905.04
  4. Step 4: Simplify right side
    563,861,937.36x = 243,516,801,957,087,680
  5. Step 5: Solve for x
    x = 243,516,801,957,087,680/563,861,937.36
  6. Step 6: Final answer
    x = 431,873,098.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.