Home / 72,171,815.10-108,257,722.65-70,046,051.10

Finding the Fourth Proportional to 72,171,815.10, 108,257,722.65 and 70,046,051.10

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Solution

The fourth proportional to 72,171,815.10, 108,257,722.65 and 70,046,051.10 is: 105,069,076.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,171,815.10 : 108,257,722.65 = 70,046,051.10 : x
  2. Step 2: Convert to fraction form
    72,171,815.10/108,257,722.65 = 70,046,051.10/x
  3. Step 3: Cross multiply
    72,171,815.10x = 108,257,722.65 × 70,046,051.10
  4. Step 4: Simplify right side
    72,171,815.10x = 7,583,025,972,711,527
  5. Step 5: Solve for x
    x = 7,583,025,972,711,527/72,171,815.10
  6. Step 6: Final answer
    x = 105,069,076.65

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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.