Home / 1,680,551,658.40-2,519,126,876.40-990,103,511.20

Finding the Fourth Proportional to 1,680,551,658.40, 2,519,126,876.40 and 990,103,511.20

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Solution

The fourth proportional to 1,680,551,658.40, 2,519,126,876.40 and 990,103,511.20 is: 1,484,153,345.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,551,658.40 : 2,519,126,876.40 = 990,103,511.20 : x
  2. Step 2: Convert to fraction form
    1,680,551,658.40/2,519,126,876.40 = 990,103,511.20/x
  3. Step 3: Cross multiply
    1,680,551,658.40x = 2,519,126,876.40 × 990,103,511.20
  4. Step 4: Simplify right side
    1,680,551,658.40x = 2,494,196,365,481,928,704
  5. Step 5: Solve for x
    x = 2,494,196,365,481,928,704/1,680,551,658.40
  6. Step 6: Final answer
    x = 1,484,153,345.13

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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.