Home / 66,112,223.40-99,168,335.10-20,687,941.80

Finding the Fourth Proportional to 66,112,223.40, 99,168,335.10 and 20,687,941.80

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Solution

The fourth proportional to 66,112,223.40, 99,168,335.10 and 20,687,941.80 is: 31,031,912.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,112,223.40 : 99,168,335.10 = 20,687,941.80 : x
  2. Step 2: Convert to fraction form
    66,112,223.40/99,168,335.10 = 20,687,941.80/x
  3. Step 3: Cross multiply
    66,112,223.40x = 99,168,335.10 × 20,687,941.80
  4. Step 4: Simplify right side
    66,112,223.40x = 2,051,588,744,951,697.25
  5. Step 5: Solve for x
    x = 2,051,588,744,951,697.25/66,112,223.40
  6. Step 6: Final answer
    x = 31,031,912.70

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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.