Home / 86,305,572.81-129,509,434.88-31,756,465.29

Finding the Fourth Proportional to 86,305,572.81, 129,509,434.88 and 31,756,465.29

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Solution

The fourth proportional to 86,305,572.81, 129,509,434.88 and 31,756,465.29 is: 47,653,491.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,305,572.81 : 129,509,434.88 = 31,756,465.29 : x
  2. Step 2: Convert to fraction form
    86,305,572.81/129,509,434.88 = 31,756,465.29/x
  3. Step 3: Cross multiply
    86,305,572.81x = 129,509,434.88 × 31,756,465.29
  4. Step 4: Simplify right side
    86,305,572.81x = 4,112,761,873,335,453
  5. Step 5: Solve for x
    x = 4,112,761,873,335,453/86,305,572.81
  6. Step 6: Final answer
    x = 47,653,491.42

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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.