Home / 1,990,656,138.30-2,985,984,207.45-610,459,683.90

Finding the Fourth Proportional to 1,990,656,138.30, 2,985,984,207.45 and 610,459,683.90

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Solution

The fourth proportional to 1,990,656,138.30, 2,985,984,207.45 and 610,459,683.90 is: 915,689,525.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,656,138.30 : 2,985,984,207.45 = 610,459,683.90 : x
  2. Step 2: Convert to fraction form
    1,990,656,138.30/2,985,984,207.45 = 610,459,683.90/x
  3. Step 3: Cross multiply
    1,990,656,138.30x = 2,985,984,207.45 × 610,459,683.90
  4. Step 4: Simplify right side
    1,990,656,138.30x = 1,822,822,975,410,318,848
  5. Step 5: Solve for x
    x = 1,822,822,975,410,318,848/1,990,656,138.30
  6. Step 6: Final answer
    x = 915,689,525.85

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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.