Home / 1,327,820,529.60-1,991,730,794.40-674,785,828.80

Finding the Fourth Proportional to 1,327,820,529.60, 1,991,730,794.40 and 674,785,828.80

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Solution

The fourth proportional to 1,327,820,529.60, 1,991,730,794.40 and 674,785,828.80 is: 1,012,178,743.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,820,529.60 : 1,991,730,794.40 = 674,785,828.80 : x
  2. Step 2: Convert to fraction form
    1,327,820,529.60/1,991,730,794.40 = 674,785,828.80/x
  3. Step 3: Cross multiply
    1,327,820,529.60x = 1,991,730,794.40 × 674,785,828.80
  4. Step 4: Simplify right side
    1,327,820,529.60x = 1,343,991,714,845,686,272
  5. Step 5: Solve for x
    x = 1,343,991,714,845,686,272/1,327,820,529.60
  6. Step 6: Final answer
    x = 1,012,178,743.20

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Double scale
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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.