Home / 440,127,711.20-660,191,566.80-406,871,314.40

Finding the Fourth Proportional to 440,127,711.20, 660,191,566.80 and 406,871,314.40

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Solution

The fourth proportional to 440,127,711.20, 660,191,566.80 and 406,871,314.40 is: 610,306,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,127,711.20 : 660,191,566.80 = 406,871,314.40 : x
  2. Step 2: Convert to fraction form
    440,127,711.20/660,191,566.80 = 406,871,314.40/x
  3. Step 3: Cross multiply
    440,127,711.20x = 660,191,566.80 × 406,871,314.40
  4. Step 4: Simplify right side
    440,127,711.20x = 268,613,010,539,711,360
  5. Step 5: Solve for x
    x = 268,613,010,539,711,360/440,127,711.20
  6. Step 6: Final answer
    x = 610,306,971.60

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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.