Home / 106,029,117.60-159,043,676.40-78,819,338.40

Finding the Fourth Proportional to 106,029,117.60, 159,043,676.40 and 78,819,338.40

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Solution

The fourth proportional to 106,029,117.60, 159,043,676.40 and 78,819,338.40 is: 118,229,007.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,029,117.60 : 159,043,676.40 = 78,819,338.40 : x
  2. Step 2: Convert to fraction form
    106,029,117.60/159,043,676.40 = 78,819,338.40/x
  3. Step 3: Cross multiply
    106,029,117.60x = 159,043,676.40 × 78,819,338.40
  4. Step 4: Simplify right side
    106,029,117.60x = 12,535,717,350,551,696
  5. Step 5: Solve for x
    x = 12,535,717,350,551,696/106,029,117.60
  6. Step 6: Final answer
    x = 118,229,007.60

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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.