Home / 563,506,314.22-777,639,628.47-312,610,712.56

Finding the Fourth Proportional to 563,506,314.22, 777,639,628.47 and 312,610,712.56

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Solution

The fourth proportional to 563,506,314.22, 777,639,628.47 and 312,610,712.56 is: 431,403,290.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,506,314.22 : 777,639,628.47 = 312,610,712.56 : x
  2. Step 2: Convert to fraction form
    563,506,314.22/777,639,628.47 = 312,610,712.56/x
  3. Step 3: Cross multiply
    563,506,314.22x = 777,639,628.47 × 312,610,712.56
  4. Step 4: Simplify right side
    563,506,314.22x = 243,098,478,370,900,384
  5. Step 5: Solve for x
    x = 243,098,478,370,900,384/563,506,314.22
  6. Step 6: Final answer
    x = 431,403,290.85

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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.