Home / 814,818,965.57-1,124,386,062.95-462,394,952.83

Finding the Fourth Proportional to 814,818,965.57, 1,124,386,062.95 and 462,394,952.83

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Solution

The fourth proportional to 814,818,965.57, 1,124,386,062.95 and 462,394,952.83 is: 638,068,653.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,818,965.57 : 1,124,386,062.95 = 462,394,952.83 : x
  2. Step 2: Convert to fraction form
    814,818,965.57/1,124,386,062.95 = 462,394,952.83/x
  3. Step 3: Cross multiply
    814,818,965.57x = 1,124,386,062.95 × 462,394,952.83
  4. Step 4: Simplify right side
    814,818,965.57x = 519,910,440,543,036,224
  5. Step 5: Solve for x
    x = 519,910,440,543,036,224/814,818,965.57
  6. Step 6: Final answer
    x = 638,068,653.91

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1.5x scale

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.