Home / 72,171,806.10-108,257,709.15-70,046,042.10

Finding the Fourth Proportional to 72,171,806.10, 108,257,709.15 and 70,046,042.10

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Solution

The fourth proportional to 72,171,806.10, 108,257,709.15 and 70,046,042.10 is: 105,069,063.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,171,806.10 : 108,257,709.15 = 70,046,042.10 : x
  2. Step 2: Convert to fraction form
    72,171,806.10/108,257,709.15 = 70,046,042.10/x
  3. Step 3: Cross multiply
    72,171,806.10x = 108,257,709.15 × 70,046,042.10
  4. Step 4: Simplify right side
    72,171,806.10x = 7,583,024,052,770,455
  5. Step 5: Solve for x
    x = 7,583,024,052,770,455/72,171,806.10
  6. Step 6: Final answer
    x = 105,069,063.15

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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.