Home / 81,648,009.40-122,472,014.10-49,399,382.20

Finding the Fourth Proportional to 81,648,009.40, 122,472,014.10 and 49,399,382.20

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Solution

The fourth proportional to 81,648,009.40, 122,472,014.10 and 49,399,382.20 is: 74,099,073.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,648,009.40 : 122,472,014.10 = 49,399,382.20 : x
  2. Step 2: Convert to fraction form
    81,648,009.40/122,472,014.10 = 49,399,382.20/x
  3. Step 3: Cross multiply
    81,648,009.40x = 122,472,014.10 × 49,399,382.20
  4. Step 4: Simplify right side
    81,648,009.40x = 6,050,041,833,329,689
  5. Step 5: Solve for x
    x = 6,050,041,833,329,689/81,648,009.40
  6. Step 6: Final answer
    x = 74,099,073.30

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1.5x scale

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.