Home / 1,216,639,079.98-1,824,229,824.45-387,234,463.66

Finding the Fourth Proportional to 1,216,639,079.98, 1,824,229,824.45 and 387,234,463.66

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Solution

The fourth proportional to 1,216,639,079.98, 1,824,229,824.45 and 387,234,463.66 is: 580,619,732.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,639,079.98 : 1,824,229,824.45 = 387,234,463.66 : x
  2. Step 2: Convert to fraction form
    1,216,639,079.98/1,824,229,824.45 = 387,234,463.66/x
  3. Step 3: Cross multiply
    1,216,639,079.98x = 1,824,229,824.45 × 387,234,463.66
  4. Step 4: Simplify right side
    1,216,639,079.98x = 706,404,657,663,471,744
  5. Step 5: Solve for x
    x = 706,404,657,663,471,744/1,216,639,079.98
  6. Step 6: Final answer
    x = 580,619,732.91

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Double scale
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1.5x scale

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.