Home / 186,086,427.40-279,129,641.10-76,875,301.90

Finding the Fourth Proportional to 186,086,427.40, 279,129,641.10 and 76,875,301.90

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Solution

The fourth proportional to 186,086,427.40, 279,129,641.10 and 76,875,301.90 is: 115,312,952.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,086,427.40 : 279,129,641.10 = 76,875,301.90 : x
  2. Step 2: Convert to fraction form
    186,086,427.40/279,129,641.10 = 76,875,301.90/x
  3. Step 3: Cross multiply
    186,086,427.40x = 279,129,641.10 × 76,875,301.90
  4. Step 4: Simplify right side
    186,086,427.40x = 21,458,175,428,801,152
  5. Step 5: Solve for x
    x = 21,458,175,428,801,152/186,086,427.40
  6. Step 6: Final answer
    x = 115,312,952.85

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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.