Home / 84,248,320.20-126,372,480.30-70,643,430.60

Finding the Fourth Proportional to 84,248,320.20, 126,372,480.30 and 70,643,430.60

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Solution

The fourth proportional to 84,248,320.20, 126,372,480.30 and 70,643,430.60 is: 105,965,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,248,320.20 : 126,372,480.30 = 70,643,430.60 : x
  2. Step 2: Convert to fraction form
    84,248,320.20/126,372,480.30 = 70,643,430.60/x
  3. Step 3: Cross multiply
    84,248,320.20x = 126,372,480.30 × 70,643,430.60
  4. Step 4: Simplify right side
    84,248,320.20x = 8,927,385,541,822,916
  5. Step 5: Solve for x
    x = 8,927,385,541,822,916/84,248,320.20
  6. Step 6: Final answer
    x = 105,965,145.90

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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.