Home / 660,384,991.20-990,577,486.80-373,730,527.20

Finding the Fourth Proportional to 660,384,991.20, 990,577,486.80 and 373,730,527.20

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Solution

The fourth proportional to 660,384,991.20, 990,577,486.80 and 373,730,527.20 is: 560,595,790.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,384,991.20 : 990,577,486.80 = 373,730,527.20 : x
  2. Step 2: Convert to fraction form
    660,384,991.20/990,577,486.80 = 373,730,527.20/x
  3. Step 3: Cross multiply
    660,384,991.20x = 990,577,486.80 × 373,730,527.20
  4. Step 4: Simplify right side
    660,384,991.20x = 370,209,046,374,215,040
  5. Step 5: Solve for x
    x = 370,209,046,374,215,040/660,384,991.20
  6. Step 6: Final answer
    x = 560,595,790.80

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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.