Home / 261,605,785.50-392,395,634.34-97,831,501.80

Finding the Fourth Proportional to 261,605,785.50, 392,395,634.34 and 97,831,501.80

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Solution

The fourth proportional to 261,605,785.50, 392,395,634.34 and 97,831,501.80 is: 146,742,374.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,605,785.50 : 392,395,634.34 = 97,831,501.80 : x
  2. Step 2: Convert to fraction form
    261,605,785.50/392,395,634.34 = 97,831,501.80/x
  3. Step 3: Cross multiply
    261,605,785.50x = 392,395,634.34 × 97,831,501.80
  4. Step 4: Simplify right side
    261,605,785.50x = 38,388,654,207,245,848
  5. Step 5: Solve for x
    x = 38,388,654,207,245,848/261,605,785.50
  6. Step 6: Final answer
    x = 146,742,374.73

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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.