Home / 515,077,654.15-772,960,889.15-220,041,723.15

Finding the Fourth Proportional to 515,077,654.15, 772,960,889.15 and 220,041,723.15

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Solution

The fourth proportional to 515,077,654.15, 772,960,889.15 and 220,041,723.15 is: 330,209,716.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,077,654.15 : 772,960,889.15 = 220,041,723.15 : x
  2. Step 2: Convert to fraction form
    515,077,654.15/772,960,889.15 = 220,041,723.15/x
  3. Step 3: Cross multiply
    515,077,654.15x = 772,960,889.15 × 220,041,723.15
  4. Step 4: Simplify right side
    515,077,654.15x = 170,083,645,971,157,120
  5. Step 5: Solve for x
    x = 170,083,645,971,157,120/515,077,654.15
  6. Step 6: Final answer
    x = 330,209,716.15

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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.