Home / 1,225,626,773.20-1,838,608,121.40-407,653,781.20

Finding the Fourth Proportional to 1,225,626,773.20, 1,838,608,121.40 and 407,653,781.20

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Solution

The fourth proportional to 1,225,626,773.20, 1,838,608,121.40 and 407,653,781.20 is: 611,536,537.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,626,773.20 : 1,838,608,121.40 = 407,653,781.20 : x
  2. Step 2: Convert to fraction form
    1,225,626,773.20/1,838,608,121.40 = 407,653,781.20/x
  3. Step 3: Cross multiply
    1,225,626,773.20x = 1,838,608,121.40 × 407,653,781.20
  4. Step 4: Simplify right side
    1,225,626,773.20x = 749,515,552,833,738,624
  5. Step 5: Solve for x
    x = 749,515,552,833,738,624/1,225,626,773.20
  6. Step 6: Final answer
    x = 611,536,537.24

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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.