Home / 1,207,830,997.60-1,812,271,124.89-655,523,630.12

Finding the Fourth Proportional to 1,207,830,997.60, 1,812,271,124.89 and 655,523,630.12

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Solution

The fourth proportional to 1,207,830,997.60, 1,812,271,124.89 and 655,523,630.12 is: 983,570,175.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,830,997.60 : 1,812,271,124.89 = 655,523,630.12 : x
  2. Step 2: Convert to fraction form
    1,207,830,997.60/1,812,271,124.89 = 655,523,630.12/x
  3. Step 3: Cross multiply
    1,207,830,997.60x = 1,812,271,124.89 × 655,523,630.12
  4. Step 4: Simplify right side
    1,207,830,997.60x = 1,187,986,546,554,931,456
  5. Step 5: Solve for x
    x = 1,187,986,546,554,931,456/1,207,830,997.60
  6. Step 6: Final answer
    x = 983,570,175.73

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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.