Home / 918,456,100.40-1,377,684,150.60-551,124,081.20

Finding the Fourth Proportional to 918,456,100.40, 1,377,684,150.60 and 551,124,081.20

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Solution

The fourth proportional to 918,456,100.40, 1,377,684,150.60 and 551,124,081.20 is: 826,686,121.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,456,100.40 : 1,377,684,150.60 = 551,124,081.20 : x
  2. Step 2: Convert to fraction form
    918,456,100.40/1,377,684,150.60 = 551,124,081.20/x
  3. Step 3: Cross multiply
    918,456,100.40x = 1,377,684,150.60 × 551,124,081.20
  4. Step 4: Simplify right side
    918,456,100.40x = 759,274,911,683,227,392
  5. Step 5: Solve for x
    x = 759,274,911,683,227,392/918,456,100.40
  6. Step 6: Final answer
    x = 826,686,121.80

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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.