Home / 99,814,145.60-149,721,218.40-85,201,486.40

Finding the Fourth Proportional to 99,814,145.60, 149,721,218.40 and 85,201,486.40

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Solution

The fourth proportional to 99,814,145.60, 149,721,218.40 and 85,201,486.40 is: 127,802,229.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,814,145.60 : 149,721,218.40 = 85,201,486.40 : x
  2. Step 2: Convert to fraction form
    99,814,145.60/149,721,218.40 = 85,201,486.40/x
  3. Step 3: Cross multiply
    99,814,145.60x = 149,721,218.40 × 85,201,486.40
  4. Step 4: Simplify right side
    99,814,145.60x = 12,756,470,353,299,032
  5. Step 5: Solve for x
    x = 12,756,470,353,299,032/99,814,145.60
  6. Step 6: Final answer
    x = 127,802,229.60

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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.