Home / 128,305,407.40-192,458,111.10-93,868,030.60

Finding the Fourth Proportional to 128,305,407.40, 192,458,111.10 and 93,868,030.60

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Solution

The fourth proportional to 128,305,407.40, 192,458,111.10 and 93,868,030.60 is: 140,802,045.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,305,407.40 : 192,458,111.10 = 93,868,030.60 : x
  2. Step 2: Convert to fraction form
    128,305,407.40/192,458,111.10 = 93,868,030.60/x
  3. Step 3: Cross multiply
    128,305,407.40x = 192,458,111.10 × 93,868,030.60
  4. Step 4: Simplify right side
    128,305,407.40x = 18,065,663,861,952,996
  5. Step 5: Solve for x
    x = 18,065,663,861,952,996/128,305,407.40
  6. Step 6: Final answer
    x = 140,802,045.90

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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.