Home / 117,765,030.40-176,647,545.60-85,516,403.20

Finding the Fourth Proportional to 117,765,030.40, 176,647,545.60 and 85,516,403.20

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Solution

The fourth proportional to 117,765,030.40, 176,647,545.60 and 85,516,403.20 is: 128,274,604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,765,030.40 : 176,647,545.60 = 85,516,403.20 : x
  2. Step 2: Convert to fraction form
    117,765,030.40/176,647,545.60 = 85,516,403.20/x
  3. Step 3: Cross multiply
    117,765,030.40x = 176,647,545.60 × 85,516,403.20
  4. Step 4: Simplify right side
    117,765,030.40x = 15,106,262,733,819,986
  5. Step 5: Solve for x
    x = 15,106,262,733,819,986/117,765,030.40
  6. Step 6: Final answer
    x = 128,274,604.80

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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.