Home / 86,508,032.40-129,762,048.60-82,681,657.20

Finding the Fourth Proportional to 86,508,032.40, 129,762,048.60 and 82,681,657.20

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Solution

The fourth proportional to 86,508,032.40, 129,762,048.60 and 82,681,657.20 is: 124,022,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,508,032.40 : 129,762,048.60 = 82,681,657.20 : x
  2. Step 2: Convert to fraction form
    86,508,032.40/129,762,048.60 = 82,681,657.20/x
  3. Step 3: Cross multiply
    86,508,032.40x = 129,762,048.60 × 82,681,657.20
  4. Step 4: Simplify right side
    86,508,032.40x = 10,728,941,219,914,940
  5. Step 5: Solve for x
    x = 10,728,941,219,914,940/86,508,032.40
  6. Step 6: Final answer
    x = 124,022,485.80

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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.