Home / 81,849,781.70-122,774,672.55-49,485,024.80

Finding the Fourth Proportional to 81,849,781.70, 122,774,672.55 and 49,485,024.80

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Solution

The fourth proportional to 81,849,781.70, 122,774,672.55 and 49,485,024.80 is: 74,227,537.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,849,781.70 : 122,774,672.55 = 49,485,024.80 : x
  2. Step 2: Convert to fraction form
    81,849,781.70/122,774,672.55 = 49,485,024.80/x
  3. Step 3: Cross multiply
    81,849,781.70x = 122,774,672.55 × 49,485,024.80
  4. Step 4: Simplify right side
    81,849,781.70x = 6,075,507,715,948,629
  5. Step 5: Solve for x
    x = 6,075,507,715,948,629/81,849,781.70
  6. Step 6: Final answer
    x = 74,227,537.20

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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.