Home / 861,478,823.43-1,292,138,519.00-239,703,482.25

Finding the Fourth Proportional to 861,478,823.43, 1,292,138,519.00 and 239,703,482.25

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Solution

The fourth proportional to 861,478,823.43, 1,292,138,519.00 and 239,703,482.25 is: 359,533,042.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,478,823.43 : 1,292,138,519.00 = 239,703,482.25 : x
  2. Step 2: Convert to fraction form
    861,478,823.43/1,292,138,519.00 = 239,703,482.25/x
  3. Step 3: Cross multiply
    861,478,823.43x = 1,292,138,519.00 × 239,703,482.25
  4. Step 4: Simplify right side
    861,478,823.43x = 309,730,102,552,459,264
  5. Step 5: Solve for x
    x = 309,730,102,552,459,264/861,478,823.43
  6. Step 6: Final answer
    x = 359,533,042.63

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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.