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Finding the Fourth Proportional to 579,927,616.80, 869,891,425.20 and 557,632,269.60

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Solution

The fourth proportional to 579,927,616.80, 869,891,425.20 and 557,632,269.60 is: 836,448,404.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,927,616.80 : 869,891,425.20 = 557,632,269.60 : x
  2. Step 2: Convert to fraction form
    579,927,616.80/869,891,425.20 = 557,632,269.60/x
  3. Step 3: Cross multiply
    579,927,616.80x = 869,891,425.20 × 557,632,269.60
  4. Step 4: Simplify right side
    579,927,616.80x = 485,079,529,739,854,656
  5. Step 5: Solve for x
    x = 485,079,529,739,854,656/579,927,616.80
  6. Step 6: Final answer
    x = 836,448,404.40

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1.5x scale

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.