Home / 712,678,309.60-1,069,017,464.40-661,022,244.40

Finding the Fourth Proportional to 712,678,309.60, 1,069,017,464.40 and 661,022,244.40

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Solution

The fourth proportional to 712,678,309.60, 1,069,017,464.40 and 661,022,244.40 is: 991,533,366.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,678,309.60 : 1,069,017,464.40 = 661,022,244.40 : x
  2. Step 2: Convert to fraction form
    712,678,309.60/1,069,017,464.40 = 661,022,244.40/x
  3. Step 3: Cross multiply
    712,678,309.60x = 1,069,017,464.40 × 661,022,244.40
  4. Step 4: Simplify right side
    712,678,309.60x = 706,644,323,620,485,120
  5. Step 5: Solve for x
    x = 706,644,323,620,485,120/712,678,309.60
  6. Step 6: Final answer
    x = 991,533,366.60

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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.