Home / 515,866,225.80-772,791,569.10-310,785,112.20

Finding the Fourth Proportional to 515,866,225.80, 772,791,569.10 and 310,785,112.20

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Solution

The fourth proportional to 515,866,225.80, 772,791,569.10 and 310,785,112.20 is: 465,570,534.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,866,225.80 : 772,791,569.10 = 310,785,112.20 : x
  2. Step 2: Convert to fraction form
    515,866,225.80/772,791,569.10 = 310,785,112.20/x
  3. Step 3: Cross multiply
    515,866,225.80x = 772,791,569.10 × 310,785,112.20
  4. Step 4: Simplify right side
    515,866,225.80x = 240,172,114,509,957,536
  5. Step 5: Solve for x
    x = 240,172,114,509,957,536/515,866,225.80
  6. Step 6: Final answer
    x = 465,570,534.57

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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.