Home / 515,034,115.20-772,688,030.40-223,776,259.20

Finding the Fourth Proportional to 515,034,115.20, 772,688,030.40 and 223,776,259.20

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Solution

The fourth proportional to 515,034,115.20, 772,688,030.40 and 223,776,259.20 is: 335,723,851.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,034,115.20 : 772,688,030.40 = 223,776,259.20 : x
  2. Step 2: Convert to fraction form
    515,034,115.20/772,688,030.40 = 223,776,259.20/x
  3. Step 3: Cross multiply
    515,034,115.20x = 772,688,030.40 × 223,776,259.20
  4. Step 4: Simplify right side
    515,034,115.20x = 172,909,236,971,527,872
  5. Step 5: Solve for x
    x = 172,909,236,971,527,872/515,034,115.20
  6. Step 6: Final answer
    x = 335,723,851.82

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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.