Home / 756,864,386.60-1,135,296,579.90-513,208,092.20

Finding the Fourth Proportional to 756,864,386.60, 1,135,296,579.90 and 513,208,092.20

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Solution

The fourth proportional to 756,864,386.60, 1,135,296,579.90 and 513,208,092.20 is: 769,812,138.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,864,386.60 : 1,135,296,579.90 = 513,208,092.20 : x
  2. Step 2: Convert to fraction form
    756,864,386.60/1,135,296,579.90 = 513,208,092.20/x
  3. Step 3: Cross multiply
    756,864,386.60x = 1,135,296,579.90 × 513,208,092.20
  4. Step 4: Simplify right side
    756,864,386.60x = 582,643,391,851,663,872
  5. Step 5: Solve for x
    x = 582,643,391,851,663,872/756,864,386.60
  6. Step 6: Final answer
    x = 769,812,138.30

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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.