Home / 215,703,041.60-323,554,562.40-86,330,619.20

Finding the Fourth Proportional to 215,703,041.60, 323,554,562.40 and 86,330,619.20

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Solution

The fourth proportional to 215,703,041.60, 323,554,562.40 and 86,330,619.20 is: 129,495,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,703,041.60 : 323,554,562.40 = 86,330,619.20 : x
  2. Step 2: Convert to fraction form
    215,703,041.60/323,554,562.40 = 86,330,619.20/x
  3. Step 3: Cross multiply
    215,703,041.60x = 323,554,562.40 × 86,330,619.20
  4. Step 4: Simplify right side
    215,703,041.60x = 27,932,665,716,977,036
  5. Step 5: Solve for x
    x = 27,932,665,716,977,036/215,703,041.60
  6. Step 6: Final answer
    x = 129,495,928.80

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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.