Home / 851,387,312.25-1,277,732,799.74-385,375,998.27

Finding the Fourth Proportional to 851,387,312.25, 1,277,732,799.74 and 385,375,998.27

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Solution

The fourth proportional to 851,387,312.25, 1,277,732,799.74 and 385,375,998.27 is: 578,359,045.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,387,312.25 : 1,277,732,799.74 = 385,375,998.27 : x
  2. Step 2: Convert to fraction form
    851,387,312.25/1,277,732,799.74 = 385,375,998.27/x
  3. Step 3: Cross multiply
    851,387,312.25x = 1,277,732,799.74 × 385,375,998.27
  4. Step 4: Simplify right side
    851,387,312.25x = 492,407,553,220,197,568
  5. Step 5: Solve for x
    x = 492,407,553,220,197,568/851,387,312.25
  6. Step 6: Final answer
    x = 578,359,045.45

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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.