Home / 686,594,138.60-1,029,891,207.90-169,020,468.20

Finding the Fourth Proportional to 686,594,138.60, 1,029,891,207.90 and 169,020,468.20

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Solution

The fourth proportional to 686,594,138.60, 1,029,891,207.90 and 169,020,468.20 is: 253,530,702.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,594,138.60 : 1,029,891,207.90 = 169,020,468.20 : x
  2. Step 2: Convert to fraction form
    686,594,138.60/1,029,891,207.90 = 169,020,468.20/x
  3. Step 3: Cross multiply
    686,594,138.60x = 1,029,891,207.90 × 169,020,468.20
  4. Step 4: Simplify right side
    686,594,138.60x = 174,072,694,154,321,536
  5. Step 5: Solve for x
    x = 174,072,694,154,321,536/686,594,138.60
  6. Step 6: Final answer
    x = 253,530,702.30

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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.