Home / 90,086,748.60-135,130,122.90-61,176,358.20

Finding the Fourth Proportional to 90,086,748.60, 135,130,122.90 and 61,176,358.20

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Solution

The fourth proportional to 90,086,748.60, 135,130,122.90 and 61,176,358.20 is: 91,764,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,086,748.60 : 135,130,122.90 = 61,176,358.20 : x
  2. Step 2: Convert to fraction form
    90,086,748.60/135,130,122.90 = 61,176,358.20/x
  3. Step 3: Cross multiply
    90,086,748.60x = 135,130,122.90 × 61,176,358.20
  4. Step 4: Simplify right side
    90,086,748.60x = 8,266,768,802,140,424
  5. Step 5: Solve for x
    x = 8,266,768,802,140,424/90,086,748.60
  6. Step 6: Final answer
    x = 91,764,537.30

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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.