Home / 660,769,720.20-991,154,580.30-553,274,296.20

Finding the Fourth Proportional to 660,769,720.20, 991,154,580.30 and 553,274,296.20

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Solution

The fourth proportional to 660,769,720.20, 991,154,580.30 and 553,274,296.20 is: 829,911,444.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,769,720.20 : 991,154,580.30 = 553,274,296.20 : x
  2. Step 2: Convert to fraction form
    660,769,720.20/991,154,580.30 = 553,274,296.20/x
  3. Step 3: Cross multiply
    660,769,720.20x = 991,154,580.30 × 553,274,296.20
  4. Step 4: Simplify right side
    660,769,720.20x = 548,380,352,840,888,896
  5. Step 5: Solve for x
    x = 548,380,352,840,888,896/660,769,720.20
  6. Step 6: Final answer
    x = 829,911,444.30

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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.