Home / 1,680,551,645.40-2,519,126,856.90-990,103,498.20

Finding the Fourth Proportional to 1,680,551,645.40, 2,519,126,856.90 and 990,103,498.20

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Solution

The fourth proportional to 1,680,551,645.40, 2,519,126,856.90 and 990,103,498.20 is: 1,484,153,325.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,551,645.40 : 2,519,126,856.90 = 990,103,498.20 : x
  2. Step 2: Convert to fraction form
    1,680,551,645.40/2,519,126,856.90 = 990,103,498.20/x
  3. Step 3: Cross multiply
    1,680,551,645.40x = 2,519,126,856.90 × 990,103,498.20
  4. Step 4: Simplify right side
    1,680,551,645.40x = 2,494,196,313,426,260,992
  5. Step 5: Solve for x
    x = 2,494,196,313,426,260,992/1,680,551,645.40
  6. Step 6: Final answer
    x = 1,484,153,325.64

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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.