Home / 90,366,187.60-135,549,281.40-84,130,613.20

Finding the Fourth Proportional to 90,366,187.60, 135,549,281.40 and 84,130,613.20

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Solution

The fourth proportional to 90,366,187.60, 135,549,281.40 and 84,130,613.20 is: 126,195,919.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,366,187.60 : 135,549,281.40 = 84,130,613.20 : x
  2. Step 2: Convert to fraction form
    90,366,187.60/135,549,281.40 = 84,130,613.20/x
  3. Step 3: Cross multiply
    90,366,187.60x = 135,549,281.40 × 84,130,613.20
  4. Step 4: Simplify right side
    90,366,187.60x = 11,403,844,163,001,356
  5. Step 5: Solve for x
    x = 11,403,844,163,001,356/90,366,187.60
  6. Step 6: Final answer
    x = 126,195,919.80

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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.