Home / 86,123,192.12-129,038,551.38-51,972,779.96

Finding the Fourth Proportional to 86,123,192.12, 129,038,551.38 and 51,972,779.96

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Solution

The fourth proportional to 86,123,192.12, 129,038,551.38 and 51,972,779.96 is: 77,870,920.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,123,192.12 : 129,038,551.38 = 51,972,779.96 : x
  2. Step 2: Convert to fraction form
    86,123,192.12/129,038,551.38 = 51,972,779.96/x
  3. Step 3: Cross multiply
    86,123,192.12x = 129,038,551.38 × 51,972,779.96
  4. Step 4: Simplify right side
    86,123,192.12x = 6,706,492,237,229,894
  5. Step 5: Solve for x
    x = 6,706,492,237,229,894/86,123,192.12
  6. Step 6: Final answer
    x = 77,870,920.39

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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.