Home / 1,680,547,982.40-2,519,121,362.40-990,099,835.20

Finding the Fourth Proportional to 1,680,547,982.40, 2,519,121,362.40 and 990,099,835.20

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Solution

The fourth proportional to 1,680,547,982.40, 2,519,121,362.40 and 990,099,835.20 is: 1,484,147,832.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,547,982.40 : 2,519,121,362.40 = 990,099,835.20 : x
  2. Step 2: Convert to fraction form
    1,680,547,982.40/2,519,121,362.40 = 990,099,835.20/x
  3. Step 3: Cross multiply
    1,680,547,982.40x = 2,519,121,362.40 × 990,099,835.20
  4. Step 4: Simplify right side
    1,680,547,982.40x = 2,494,181,645,761,039,872
  5. Step 5: Solve for x
    x = 2,494,181,645,761,039,872/1,680,547,982.40
  6. Step 6: Final answer
    x = 1,484,147,832.66

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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.