Home / 45,516,879.20-68,275,318.80-42,056,578.40

Finding the Fourth Proportional to 45,516,879.20, 68,275,318.80 and 42,056,578.40

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Solution

The fourth proportional to 45,516,879.20, 68,275,318.80 and 42,056,578.40 is: 63,084,867.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,516,879.20 : 68,275,318.80 = 42,056,578.40 : x
  2. Step 2: Convert to fraction form
    45,516,879.20/68,275,318.80 = 42,056,578.40/x
  3. Step 3: Cross multiply
    45,516,879.20x = 68,275,318.80 × 42,056,578.40
  4. Step 4: Simplify right side
    45,516,879.20x = 2,871,426,297,897,193.50
  5. Step 5: Solve for x
    x = 2,871,426,297,897,193.50/45,516,879.20
  6. Step 6: Final answer
    x = 63,084,867.60

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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.