Home / 215,352,001.60-323,028,002.40-85,979,579.20

Finding the Fourth Proportional to 215,352,001.60, 323,028,002.40 and 85,979,579.20

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Solution

The fourth proportional to 215,352,001.60, 323,028,002.40 and 85,979,579.20 is: 128,969,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,352,001.60 : 323,028,002.40 = 85,979,579.20 : x
  2. Step 2: Convert to fraction form
    215,352,001.60/323,028,002.40 = 85,979,579.20/x
  3. Step 3: Cross multiply
    215,352,001.60x = 323,028,002.40 × 85,979,579.20
  4. Step 4: Simplify right side
    215,352,001.60x = 27,773,811,716,168,588
  5. Step 5: Solve for x
    x = 27,773,811,716,168,588/215,352,001.60
  6. Step 6: Final answer
    x = 128,969,368.80

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1.5x scale

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.