Home / 1,190,838,781.38-1,786,461,674.60-490,948,321.56

Finding the Fourth Proportional to 1,190,838,781.38, 1,786,461,674.60 and 490,948,321.56

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Solution

The fourth proportional to 1,190,838,781.38, 1,786,461,674.60 and 490,948,321.56 is: 736,506,380.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,838,781.38 : 1,786,461,674.60 = 490,948,321.56 : x
  2. Step 2: Convert to fraction form
    1,190,838,781.38/1,786,461,674.60 = 490,948,321.56/x
  3. Step 3: Cross multiply
    1,190,838,781.38x = 1,786,461,674.60 × 490,948,321.56
  4. Step 4: Simplify right side
    1,190,838,781.38x = 877,060,360,676,136,832
  5. Step 5: Solve for x
    x = 877,060,360,676,136,832/1,190,838,781.38
  6. Step 6: Final answer
    x = 736,506,380.54

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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.