Home / 131,369,853.27-181,287,202.08-72,631,005.51

Finding the Fourth Proportional to 131,369,853.27, 181,287,202.08 and 72,631,005.51

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Solution

The fourth proportional to 131,369,853.27, 181,287,202.08 and 72,631,005.51 is: 100,229,020.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,369,853.27 : 181,287,202.08 = 72,631,005.51 : x
  2. Step 2: Convert to fraction form
    131,369,853.27/181,287,202.08 = 72,631,005.51/x
  3. Step 3: Cross multiply
    131,369,853.27x = 181,287,202.08 × 72,631,005.51
  4. Step 4: Simplify right side
    131,369,853.27x = 13,167,071,773,164,966
  5. Step 5: Solve for x
    x = 13,167,071,773,164,966/131,369,853.27
  6. Step 6: Final answer
    x = 100,229,020.93

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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.