Home / 563,861,929.86-778,066,351.87-312,976,897.54

Finding the Fourth Proportional to 563,861,929.86, 778,066,351.87 and 312,976,897.54

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Solution

The fourth proportional to 563,861,929.86, 778,066,351.87 and 312,976,897.54 is: 431,873,088.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,861,929.86 : 778,066,351.87 = 312,976,897.54 : x
  2. Step 2: Convert to fraction form
    563,861,929.86/778,066,351.87 = 312,976,897.54/x
  3. Step 3: Cross multiply
    563,861,929.86x = 778,066,351.87 × 312,976,897.54
  4. Step 4: Simplify right side
    563,861,929.86x = 243,516,792,888,538,592
  5. Step 5: Solve for x
    x = 243,516,792,888,538,592/563,861,929.86
  6. Step 6: Final answer
    x = 431,873,088.06

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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.