Home / 91,977,126.51-138,023,127.44-61,293,236.29

Finding the Fourth Proportional to 91,977,126.51, 138,023,127.44 and 61,293,236.29

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Solution

The fourth proportional to 91,977,126.51, 138,023,127.44 and 61,293,236.29 is: 91,978,130.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,977,126.51 : 138,023,127.44 = 61,293,236.29 : x
  2. Step 2: Convert to fraction form
    91,977,126.51/138,023,127.44 = 61,293,236.29/x
  3. Step 3: Cross multiply
    91,977,126.51x = 138,023,127.44 × 61,293,236.29
  4. Step 4: Simplify right side
    91,977,126.51x = 8,459,884,163,664,703
  5. Step 5: Solve for x
    x = 8,459,884,163,664,703/91,977,126.51
  6. Step 6: Final answer
    x = 91,978,130.70

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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.