Home / 86,930,867.70-130,396,301.55-39,155,123.70

Finding the Fourth Proportional to 86,930,867.70, 130,396,301.55 and 39,155,123.70

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Solution

The fourth proportional to 86,930,867.70, 130,396,301.55 and 39,155,123.70 is: 58,732,685.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,930,867.70 : 130,396,301.55 = 39,155,123.70 : x
  2. Step 2: Convert to fraction form
    86,930,867.70/130,396,301.55 = 39,155,123.70/x
  3. Step 3: Cross multiply
    86,930,867.70x = 130,396,301.55 × 39,155,123.70
  4. Step 4: Simplify right side
    86,930,867.70x = 5,105,683,317,212,752
  5. Step 5: Solve for x
    x = 5,105,683,317,212,752/86,930,867.70
  6. Step 6: Final answer
    x = 58,732,685.55

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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.