Home / 1,991,728,408.40-2,987,592,612.60-1,012,176,357.20

Finding the Fourth Proportional to 1,991,728,408.40, 2,987,592,612.60 and 1,012,176,357.20

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Solution

The fourth proportional to 1,991,728,408.40, 2,987,592,612.60 and 1,012,176,357.20 is: 1,518,264,535.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,728,408.40 : 2,987,592,612.60 = 1,012,176,357.20 : x
  2. Step 2: Convert to fraction form
    1,991,728,408.40/2,987,592,612.60 = 1,012,176,357.20/x
  3. Step 3: Cross multiply
    1,991,728,408.40x = 2,987,592,612.60 × 1,012,176,357.20
  4. Step 4: Simplify right side
    1,991,728,408.40x = 3,023,970,607,419,098,624
  5. Step 5: Solve for x
    x = 3,023,970,607,419,098,624/1,991,728,408.40
  6. Step 6: Final answer
    x = 1,518,264,535.80

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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.