Home / 90,169,117.18-124,422,884.01-50,478,821.32

Finding the Fourth Proportional to 90,169,117.18, 124,422,884.01 and 50,478,821.32

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Solution

The fourth proportional to 90,169,117.18, 124,422,884.01 and 50,478,821.32 is: 69,654,896.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,169,117.18 : 124,422,884.01 = 50,478,821.32 : x
  2. Step 2: Convert to fraction form
    90,169,117.18/124,422,884.01 = 50,478,821.32/x
  3. Step 3: Cross multiply
    90,169,117.18x = 124,422,884.01 × 50,478,821.32
  4. Step 4: Simplify right side
    90,169,117.18x = 6,280,720,530,059,875
  5. Step 5: Solve for x
    x = 6,280,720,530,059,875/90,169,117.18
  6. Step 6: Final answer
    x = 69,654,896.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.