Home / 78,512,332.35-117,781,280.97-23,185,763.55

Finding the Fourth Proportional to 78,512,332.35, 117,781,280.97 and 23,185,763.55

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Solution

The fourth proportional to 78,512,332.35, 117,781,280.97 and 23,185,763.55 is: 34,782,420.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,512,332.35 : 117,781,280.97 = 23,185,763.55 : x
  2. Step 2: Convert to fraction form
    78,512,332.35/117,781,280.97 = 23,185,763.55/x
  3. Step 3: Cross multiply
    78,512,332.35x = 117,781,280.97 × 23,185,763.55
  4. Step 4: Simplify right side
    78,512,332.35x = 2,730,848,931,186,534.50
  5. Step 5: Solve for x
    x = 2,730,848,931,186,534.50/78,512,332.35
  6. Step 6: Final answer
    x = 34,782,420.16

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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.