Home / 71,317,345.20-106,976,017.80-66,498,946.80

Finding the Fourth Proportional to 71,317,345.20, 106,976,017.80 and 66,498,946.80

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Solution

The fourth proportional to 71,317,345.20, 106,976,017.80 and 66,498,946.80 is: 99,748,420.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,317,345.20 : 106,976,017.80 = 66,498,946.80 : x
  2. Step 2: Convert to fraction form
    71,317,345.20/106,976,017.80 = 66,498,946.80/x
  3. Step 3: Cross multiply
    71,317,345.20x = 106,976,017.80 × 66,498,946.80
  4. Step 4: Simplify right side
    71,317,345.20x = 7,113,792,516,558,053
  5. Step 5: Solve for x
    x = 7,113,792,516,558,053/71,317,345.20
  6. Step 6: Final answer
    x = 99,748,420.20

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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.