Home / 65,757,420.40-98,825,087.40-57,443,321.20

Finding the Fourth Proportional to 65,757,420.40, 98,825,087.40 and 57,443,321.20

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Solution

The fourth proportional to 65,757,420.40, 98,825,087.40 and 57,443,321.20 is: 86,330,047.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,757,420.40 : 98,825,087.40 = 57,443,321.20 : x
  2. Step 2: Convert to fraction form
    65,757,420.40/98,825,087.40 = 57,443,321.20/x
  3. Step 3: Cross multiply
    65,757,420.40x = 98,825,087.40 × 57,443,321.20
  4. Step 4: Simplify right side
    65,757,420.40x = 5,676,841,238,136,274
  5. Step 5: Solve for x
    x = 5,676,841,238,136,274/65,757,420.40
  6. Step 6: Final answer
    x = 86,330,047.68

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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.