Home / 1,207,224,005.10-1,810,836,007.65-839,891,985.90

Finding the Fourth Proportional to 1,207,224,005.10, 1,810,836,007.65 and 839,891,985.90

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Solution

The fourth proportional to 1,207,224,005.10, 1,810,836,007.65 and 839,891,985.90 is: 1,259,837,978.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,224,005.10 : 1,810,836,007.65 = 839,891,985.90 : x
  2. Step 2: Convert to fraction form
    1,207,224,005.10/1,810,836,007.65 = 839,891,985.90/x
  3. Step 3: Cross multiply
    1,207,224,005.10x = 1,810,836,007.65 × 839,891,985.90
  4. Step 4: Simplify right side
    1,207,224,005.10x = 1,520,906,650,604,386,048
  5. Step 5: Solve for x
    x = 1,520,906,650,604,386,048/1,207,224,005.10
  6. Step 6: Final answer
    x = 1,259,837,978.85

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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.