Home / 1,478,445,552.40-2,217,524,205.30-387,928,620.40

Finding the Fourth Proportional to 1,478,445,552.40, 2,217,524,205.30 and 387,928,620.40

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Solution

The fourth proportional to 1,478,445,552.40, 2,217,524,205.30 and 387,928,620.40 is: 581,855,114.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,445,552.40 : 2,217,524,205.30 = 387,928,620.40 : x
  2. Step 2: Convert to fraction form
    1,478,445,552.40/2,217,524,205.30 = 387,928,620.40/x
  3. Step 3: Cross multiply
    1,478,445,552.40x = 2,217,524,205.30 × 387,928,620.40
  4. Step 4: Simplify right side
    1,478,445,552.40x = 860,241,105,665,635,328
  5. Step 5: Solve for x
    x = 860,241,105,665,635,328/1,478,445,552.40
  6. Step 6: Final answer
    x = 581,855,114.16

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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.