Home / 1,314,819,028.80-1,972,228,543.20-635,341,780.80

Finding the Fourth Proportional to 1,314,819,028.80, 1,972,228,543.20 and 635,341,780.80

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Solution

The fourth proportional to 1,314,819,028.80, 1,972,228,543.20 and 635,341,780.80 is: 953,012,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,819,028.80 : 1,972,228,543.20 = 635,341,780.80 : x
  2. Step 2: Convert to fraction form
    1,314,819,028.80/1,972,228,543.20 = 635,341,780.80/x
  3. Step 3: Cross multiply
    1,314,819,028.80x = 1,972,228,543.20 × 635,341,780.80
  4. Step 4: Simplify right side
    1,314,819,028.80x = 1,253,039,194,781,277,696
  5. Step 5: Solve for x
    x = 1,253,039,194,781,277,696/1,314,819,028.80
  6. Step 6: Final answer
    x = 953,012,671.20

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Double scale
Find fourth proportional to 1,314,819,029.80, 1,972,228,544.70 and 635,341,781.80
Similar ratio
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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.