Home / 814,084,821.60-1,221,127,232.40-487,567,471.20

Finding the Fourth Proportional to 814,084,821.60, 1,221,127,232.40 and 487,567,471.20

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Solution

The fourth proportional to 814,084,821.60, 1,221,127,232.40 and 487,567,471.20 is: 731,351,206.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,084,821.60 : 1,221,127,232.40 = 487,567,471.20 : x
  2. Step 2: Convert to fraction form
    814,084,821.60/1,221,127,232.40 = 487,567,471.20/x
  3. Step 3: Cross multiply
    814,084,821.60x = 1,221,127,232.40 × 487,567,471.20
  4. Step 4: Simplify right side
    814,084,821.60x = 595,381,916,714,722,688
  5. Step 5: Solve for x
    x = 595,381,916,714,722,688/814,084,821.60
  6. Step 6: Final answer
    x = 731,351,206.80

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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.