Home / 85,536,324.40-128,304,486.60-83,835,713.20

Finding the Fourth Proportional to 85,536,324.40, 128,304,486.60 and 83,835,713.20

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Solution

The fourth proportional to 85,536,324.40, 128,304,486.60 and 83,835,713.20 is: 125,753,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536,324.40 : 128,304,486.60 = 83,835,713.20 : x
  2. Step 2: Convert to fraction form
    85,536,324.40/128,304,486.60 = 83,835,713.20/x
  3. Step 3: Cross multiply
    85,536,324.40x = 128,304,486.60 × 83,835,713.20
  4. Step 4: Simplify right side
    85,536,324.40x = 10,756,498,140,870,844
  5. Step 5: Solve for x
    x = 10,756,498,140,870,844/85,536,324.40
  6. Step 6: Final answer
    x = 125,753,569.80

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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.