Home / 660,038,010.30-990,057,015.45-332,386,919.10

Finding the Fourth Proportional to 660,038,010.30, 990,057,015.45 and 332,386,919.10

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Solution

The fourth proportional to 660,038,010.30, 990,057,015.45 and 332,386,919.10 is: 498,580,378.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,038,010.30 : 990,057,015.45 = 332,386,919.10 : x
  2. Step 2: Convert to fraction form
    660,038,010.30/990,057,015.45 = 332,386,919.10/x
  3. Step 3: Cross multiply
    660,038,010.30x = 990,057,015.45 × 332,386,919.10
  4. Step 4: Simplify right side
    660,038,010.30x = 329,082,001,098,766,656
  5. Step 5: Solve for x
    x = 329,082,001,098,766,656/660,038,010.30
  6. Step 6: Final answer
    x = 498,580,378.65

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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.