Home / 74,675,998.40-112,013,997.60-66,739,812.80

Finding the Fourth Proportional to 74,675,998.40, 112,013,997.60 and 66,739,812.80

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Solution

The fourth proportional to 74,675,998.40, 112,013,997.60 and 66,739,812.80 is: 100,109,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,675,998.40 : 112,013,997.60 = 66,739,812.80 : x
  2. Step 2: Convert to fraction form
    74,675,998.40/112,013,997.60 = 66,739,812.80/x
  3. Step 3: Cross multiply
    74,675,998.40x = 112,013,997.60 × 66,739,812.80
  4. Step 4: Simplify right side
    74,675,998.40x = 7,475,793,230,803,649
  5. Step 5: Solve for x
    x = 7,475,793,230,803,649/74,675,998.40
  6. Step 6: Final answer
    x = 100,109,719.20

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1.5x scale

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.