Home / 72,666,806.40-108,876,819.60-43,852,395.60

Finding the Fourth Proportional to 72,666,806.40, 108,876,819.60 and 43,852,395.60

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Solution

The fourth proportional to 72,666,806.40, 108,876,819.60 and 43,852,395.60 is: 65,704,130.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,666,806.40 : 108,876,819.60 = 43,852,395.60 : x
  2. Step 2: Convert to fraction form
    72,666,806.40/108,876,819.60 = 43,852,395.60/x
  3. Step 3: Cross multiply
    72,666,806.40x = 108,876,819.60 × 43,852,395.60
  4. Step 4: Simplify right side
    72,666,806.40x = 4,774,509,364,769,034
  5. Step 5: Solve for x
    x = 4,774,509,364,769,034/72,666,806.40
  6. Step 6: Final answer
    x = 65,704,130.97

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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.