Home / 86,305,572.24-129,509,434.03-31,756,464.73

Finding the Fourth Proportional to 86,305,572.24, 129,509,434.03 and 31,756,464.73

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Solution

The fourth proportional to 86,305,572.24, 129,509,434.03 and 31,756,464.73 is: 47,653,490.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,305,572.24 : 129,509,434.03 = 31,756,464.73 : x
  2. Step 2: Convert to fraction form
    86,305,572.24/129,509,434.03 = 31,756,464.73/x
  3. Step 3: Cross multiply
    86,305,572.24x = 129,509,434.03 × 31,756,464.73
  4. Step 4: Simplify right side
    86,305,572.24x = 4,112,761,773,572,792
  5. Step 5: Solve for x
    x = 4,112,761,773,572,792/86,305,572.24
  6. Step 6: Final answer
    x = 47,653,490.58

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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.