Home / 918,456,042.40-1,377,684,063.60-551,124,023.20

Finding the Fourth Proportional to 918,456,042.40, 1,377,684,063.60 and 551,124,023.20

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Solution

The fourth proportional to 918,456,042.40, 1,377,684,063.60 and 551,124,023.20 is: 826,686,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,456,042.40 : 1,377,684,063.60 = 551,124,023.20 : x
  2. Step 2: Convert to fraction form
    918,456,042.40/1,377,684,063.60 = 551,124,023.20/x
  3. Step 3: Cross multiply
    918,456,042.40x = 1,377,684,063.60 × 551,124,023.20
  4. Step 4: Simplify right side
    918,456,042.40x = 759,274,783,829,756,672
  5. Step 5: Solve for x
    x = 759,274,783,829,756,672/918,456,042.40
  6. Step 6: Final answer
    x = 826,686,034.80

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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.