Home / 86,305,572.49-129,509,434.40-31,756,464.98

Finding the Fourth Proportional to 86,305,572.49, 129,509,434.40 and 31,756,464.98

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Solution

The fourth proportional to 86,305,572.49, 129,509,434.40 and 31,756,464.98 is: 47,653,490.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,305,572.49 : 129,509,434.40 = 31,756,464.98 : x
  2. Step 2: Convert to fraction form
    86,305,572.49/129,509,434.40 = 31,756,464.98/x
  3. Step 3: Cross multiply
    86,305,572.49x = 129,509,434.40 × 31,756,464.98
  4. Step 4: Simplify right side
    86,305,572.49x = 4,112,761,818,103,207.50
  5. Step 5: Solve for x
    x = 4,112,761,818,103,207.50/86,305,572.49
  6. Step 6: Final answer
    x = 47,653,490.96

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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.