Home / 99,931,971.60-149,674,008.60-82,016,067.60

Finding the Fourth Proportional to 99,931,971.60, 149,674,008.60 and 82,016,067.60

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Solution

The fourth proportional to 99,931,971.60, 149,674,008.60 and 82,016,067.60 is: 122,840,302.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,931,971.60 : 149,674,008.60 = 82,016,067.60 : x
  2. Step 2: Convert to fraction form
    99,931,971.60/149,674,008.60 = 82,016,067.60/x
  3. Step 3: Cross multiply
    99,931,971.60x = 149,674,008.60 × 82,016,067.60
  4. Step 4: Simplify right side
    99,931,971.60x = 12,275,673,607,300,580
  5. Step 5: Solve for x
    x = 12,275,673,607,300,580/99,931,971.60
  6. Step 6: Final answer
    x = 122,840,302.37

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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.