Home / 86,910,065.40-130,365,098.10-85,566,372.60

Finding the Fourth Proportional to 86,910,065.40, 130,365,098.10 and 85,566,372.60

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Solution

The fourth proportional to 86,910,065.40, 130,365,098.10 and 85,566,372.60 is: 128,349,558.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,910,065.40 : 130,365,098.10 = 85,566,372.60 : x
  2. Step 2: Convert to fraction form
    86,910,065.40/130,365,098.10 = 85,566,372.60/x
  3. Step 3: Cross multiply
    86,910,065.40x = 130,365,098.10 × 85,566,372.60
  4. Step 4: Simplify right side
    86,910,065.40x = 11,154,868,558,060,150
  5. Step 5: Solve for x
    x = 11,154,868,558,060,150/86,910,065.40
  6. Step 6: Final answer
    x = 128,349,558.90

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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.