Home / 1,408,852,151.28-1,944,339,170.76-782,443,040.40

Finding the Fourth Proportional to 1,408,852,151.28, 1,944,339,170.76 and 782,443,040.40

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Solution

The fourth proportional to 1,408,852,151.28, 1,944,339,170.76 and 782,443,040.40 is: 1,079,839,819.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,852,151.28 : 1,944,339,170.76 = 782,443,040.40 : x
  2. Step 2: Convert to fraction form
    1,408,852,151.28/1,944,339,170.76 = 782,443,040.40/x
  3. Step 3: Cross multiply
    1,408,852,151.28x = 1,944,339,170.76 × 782,443,040.40
  4. Step 4: Simplify right side
    1,408,852,151.28x = 1,521,334,652,338,269,184
  5. Step 5: Solve for x
    x = 1,521,334,652,338,269,184/1,408,852,151.28
  6. Step 6: Final answer
    x = 1,079,839,819.21

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.