Home / 227,572,885.30-314,016,798.90-138,218,331.06

Finding the Fourth Proportional to 227,572,885.30, 314,016,798.90 and 138,218,331.06

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Solution

The fourth proportional to 227,572,885.30, 314,016,798.90 and 138,218,331.06 is: 190,720,778.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,572,885.30 : 314,016,798.90 = 138,218,331.06 : x
  2. Step 2: Convert to fraction form
    227,572,885.30/314,016,798.90 = 138,218,331.06/x
  3. Step 3: Cross multiply
    227,572,885.30x = 314,016,798.90 × 138,218,331.06
  4. Step 4: Simplify right side
    227,572,885.30x = 43,402,877,868,761,640
  5. Step 5: Solve for x
    x = 43,402,877,868,761,640/227,572,885.30
  6. Step 6: Final answer
    x = 190,720,778.58

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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.