Home / 147,905,733.80-221,433,447.90-90,510,105.80

Finding the Fourth Proportional to 147,905,733.80, 221,433,447.90 and 90,510,105.80

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Solution

The fourth proportional to 147,905,733.80, 221,433,447.90 and 90,510,105.80 is: 135,504,988.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,905,733.80 : 221,433,447.90 = 90,510,105.80 : x
  2. Step 2: Convert to fraction form
    147,905,733.80/221,433,447.90 = 90,510,105.80/x
  3. Step 3: Cross multiply
    147,905,733.80x = 221,433,447.90 × 90,510,105.80
  4. Step 4: Simplify right side
    147,905,733.80x = 20,041,964,797,087,788
  5. Step 5: Solve for x
    x = 20,041,964,797,087,788/147,905,733.80
  6. Step 6: Final answer
    x = 135,504,988.77

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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.