Home / 71,742,528-107,593,866.24-19,915,215.36

Finding the Fourth Proportional to 71,742,528, 107,593,866.24 and 19,915,215.36

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Solution

The fourth proportional to 71,742,528, 107,593,866.24 and 19,915,215.36 is: 29,867,291.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,742,528 : 107,593,866.24 = 19,915,215.36 : x
  2. Step 2: Convert to fraction form
    71,742,528/107,593,866.24 = 19,915,215.36/x
  3. Step 3: Cross multiply
    71,742,528x = 107,593,866.24 × 19,915,215.36
  4. Step 4: Simplify right side
    71,742,528x = 2,142,755,017,584,633.25
  5. Step 5: Solve for x
    x = 2,142,755,017,584,633.25/71,742,528
  6. Step 6: Final answer
    x = 29,867,291.79

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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.