Home / 99,642,291.60-149,463,437.40-61,179,085.20

Finding the Fourth Proportional to 99,642,291.60, 149,463,437.40 and 61,179,085.20

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Solution

The fourth proportional to 99,642,291.60, 149,463,437.40 and 61,179,085.20 is: 91,768,627.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,642,291.60 : 149,463,437.40 = 61,179,085.20 : x
  2. Step 2: Convert to fraction form
    99,642,291.60/149,463,437.40 = 61,179,085.20/x
  3. Step 3: Cross multiply
    99,642,291.60x = 149,463,437.40 × 61,179,085.20
  4. Step 4: Simplify right side
    99,642,291.60x = 9,144,036,370,979,468
  5. Step 5: Solve for x
    x = 9,144,036,370,979,468/99,642,291.60
  6. Step 6: Final answer
    x = 91,768,627.80

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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.