Home / 65,112,890.29-89,852,488.80-38,652,375.16

Finding the Fourth Proportional to 65,112,890.29, 89,852,488.80 and 38,652,375.16

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Solution

The fourth proportional to 65,112,890.29, 89,852,488.80 and 38,652,375.16 is: 53,338,318.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,112,890.29 : 89,852,488.80 = 38,652,375.16 : x
  2. Step 2: Convert to fraction form
    65,112,890.29/89,852,488.80 = 38,652,375.16/x
  3. Step 3: Cross multiply
    65,112,890.29x = 89,852,488.80 × 38,652,375.16
  4. Step 4: Simplify right side
    65,112,890.29x = 3,473,012,106,157,298
  5. Step 5: Solve for x
    x = 3,473,012,106,157,298/65,112,890.29
  6. Step 6: Final answer
    x = 53,338,318.89

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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.