Home / 142,015,001.60-213,022,502.40-90,996,665.60

Finding the Fourth Proportional to 142,015,001.60, 213,022,502.40 and 90,996,665.60

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Solution

The fourth proportional to 142,015,001.60, 213,022,502.40 and 90,996,665.60 is: 136,494,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,015,001.60 : 213,022,502.40 = 90,996,665.60 : x
  2. Step 2: Convert to fraction form
    142,015,001.60/213,022,502.40 = 90,996,665.60/x
  3. Step 3: Cross multiply
    142,015,001.60x = 213,022,502.40 × 90,996,665.60
  4. Step 4: Simplify right side
    142,015,001.60x = 19,384,337,416,167,996
  5. Step 5: Solve for x
    x = 19,384,337,416,167,996/142,015,001.60
  6. Step 6: Final answer
    x = 136,494,998.40

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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.