Home / 156,035,335.40-215,326,123.91-86,419,221.60

Finding the Fourth Proportional to 156,035,335.40, 215,326,123.91 and 86,419,221.60

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Solution

The fourth proportional to 156,035,335.40, 215,326,123.91 and 86,419,221.60 is: 119,257,064.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,035,335.40 : 215,326,123.91 = 86,419,221.60 : x
  2. Step 2: Convert to fraction form
    156,035,335.40/215,326,123.91 = 86,419,221.60/x
  3. Step 3: Cross multiply
    156,035,335.40x = 215,326,123.91 × 86,419,221.60
  4. Step 4: Simplify right side
    156,035,335.40x = 18,608,316,019,145,936
  5. Step 5: Solve for x
    x = 18,608,316,019,145,936/156,035,335.40
  6. Step 6: Final answer
    x = 119,257,064.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.