Home / 71,668,617.21-106,979,717.69-61,498,829.36

Finding the Fourth Proportional to 71,668,617.21, 106,979,717.69 and 61,498,829.36

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Solution

The fourth proportional to 71,668,617.21, 106,979,717.69 and 61,498,829.36 is: 91,799,279.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,668,617.21 : 106,979,717.69 = 61,498,829.36 : x
  2. Step 2: Convert to fraction form
    71,668,617.21/106,979,717.69 = 61,498,829.36/x
  3. Step 3: Cross multiply
    71,668,617.21x = 106,979,717.69 × 61,498,829.36
  4. Step 4: Simplify right side
    71,668,617.21x = 6,579,127,402,355,890
  5. Step 5: Solve for x
    x = 6,579,127,402,355,890/71,668,617.21
  6. Step 6: Final answer
    x = 91,799,279.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.