Home / 312,715,305.02-431,417,781.44-180,462,472.40

Finding the Fourth Proportional to 312,715,305.02, 431,417,781.44 and 180,462,472.40

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Solution

The fourth proportional to 312,715,305.02, 431,417,781.44 and 180,462,472.40 is: 248,963,572.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,715,305.02 : 431,417,781.44 = 180,462,472.40 : x
  2. Step 2: Convert to fraction form
    312,715,305.02/431,417,781.44 = 180,462,472.40/x
  3. Step 3: Cross multiply
    312,715,305.02x = 431,417,781.44 × 180,462,472.40
  4. Step 4: Simplify right side
    312,715,305.02x = 77,854,719,472,925,840
  5. Step 5: Solve for x
    x = 77,854,719,472,925,840/312,715,305.02
  6. Step 6: Final answer
    x = 248,963,572.38

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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.