Home / 42,646,541.20-63,969,811.80-21,084,470.80

Finding the Fourth Proportional to 42,646,541.20, 63,969,811.80 and 21,084,470.80

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Solution

The fourth proportional to 42,646,541.20, 63,969,811.80 and 21,084,470.80 is: 31,626,706.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,646,541.20 : 63,969,811.80 = 21,084,470.80 : x
  2. Step 2: Convert to fraction form
    42,646,541.20/63,969,811.80 = 21,084,470.80/x
  3. Step 3: Cross multiply
    42,646,541.20x = 63,969,811.80 × 21,084,470.80
  4. Step 4: Simplify right side
    42,646,541.20x = 1,348,769,628,978,595.50
  5. Step 5: Solve for x
    x = 1,348,769,628,978,595.50/42,646,541.20
  6. Step 6: Final answer
    x = 31,626,706.20

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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.