Home / 1,243,256,565.12-1,715,672,272.32-686,325,287.04

Finding the Fourth Proportional to 1,243,256,565.12, 1,715,672,272.32 and 686,325,287.04

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Solution

The fourth proportional to 1,243,256,565.12, 1,715,672,272.32 and 686,325,287.04 is: 947,116,868.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,256,565.12 : 1,715,672,272.32 = 686,325,287.04 : x
  2. Step 2: Convert to fraction form
    1,243,256,565.12/1,715,672,272.32 = 686,325,287.04/x
  3. Step 3: Cross multiply
    1,243,256,565.12x = 1,715,672,272.32 × 686,325,287.04
  4. Step 4: Simplify right side
    1,243,256,565.12x = 1,177,509,264,766,593,024
  5. Step 5: Solve for x
    x = 1,177,509,264,766,593,024/1,243,256,565.12
  6. Step 6: Final answer
    x = 947,116,868.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.