Home / 261,924,755.60-392,820,094.32-77,649,139.76

Finding the Fourth Proportional to 261,924,755.60, 392,820,094.32 and 77,649,139.76

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Solution

The fourth proportional to 261,924,755.60, 392,820,094.32 and 77,649,139.76 is: 116,453,835.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,924,755.60 : 392,820,094.32 = 77,649,139.76 : x
  2. Step 2: Convert to fraction form
    261,924,755.60/392,820,094.32 = 77,649,139.76/x
  3. Step 3: Cross multiply
    261,924,755.60x = 392,820,094.32 × 77,649,139.76
  4. Step 4: Simplify right side
    261,924,755.60x = 30,502,142,404,390,064
  5. Step 5: Solve for x
    x = 30,502,142,404,390,064/261,924,755.60
  6. Step 6: Final answer
    x = 116,453,835.51

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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.