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Finding the Fourth Proportional to 1,294,820,917.09, 1,786,779,500.51 and 730,272,056.20

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Solution

The fourth proportional to 1,294,820,917.09, 1,786,779,500.51 and 730,272,056.20 is: 1,007,734,060.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,820,917.09 : 1,786,779,500.51 = 730,272,056.20 : x
  2. Step 2: Convert to fraction form
    1,294,820,917.09/1,786,779,500.51 = 730,272,056.20/x
  3. Step 3: Cross multiply
    1,294,820,917.09x = 1,786,779,500.51 × 730,272,056.20
  4. Step 4: Simplify right side
    1,294,820,917.09x = 1,304,835,139,804,920,320
  5. Step 5: Solve for x
    x = 1,304,835,139,804,920,320/1,294,820,917.09
  6. Step 6: Final answer
    x = 1,007,734,060.04

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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.