Home / 1,206,442,385.91-1,812,387,753.45-715,477,674.78

Finding the Fourth Proportional to 1,206,442,385.91, 1,812,387,753.45 and 715,477,674.78

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Solution

The fourth proportional to 1,206,442,385.91, 1,812,387,753.45 and 715,477,674.78 is: 1,074,832,077.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,442,385.91 : 1,812,387,753.45 = 715,477,674.78 : x
  2. Step 2: Convert to fraction form
    1,206,442,385.91/1,812,387,753.45 = 715,477,674.78/x
  3. Step 3: Cross multiply
    1,206,442,385.91x = 1,812,387,753.45 × 715,477,674.78
  4. Step 4: Simplify right side
    1,206,442,385.91x = 1,296,722,975,638,153,984
  5. Step 5: Solve for x
    x = 1,296,722,975,638,153,984/1,206,442,385.91
  6. Step 6: Final answer
    x = 1,074,832,077.17

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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.