Home / 1,005,388,656.50-1,387,449,109.20-553,318,674.33

Finding the Fourth Proportional to 1,005,388,656.50, 1,387,449,109.20 and 553,318,674.33

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Solution

The fourth proportional to 1,005,388,656.50, 1,387,449,109.20 and 553,318,674.33 is: 763,586,794.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,388,656.50 : 1,387,449,109.20 = 553,318,674.33 : x
  2. Step 2: Convert to fraction form
    1,005,388,656.50/1,387,449,109.20 = 553,318,674.33/x
  3. Step 3: Cross multiply
    1,005,388,656.50x = 1,387,449,109.20 × 553,318,674.33
  4. Step 4: Simplify right side
    1,005,388,656.50x = 767,701,501,799,195,904
  5. Step 5: Solve for x
    x = 767,701,501,799,195,904/1,005,388,656.50
  6. Step 6: Final answer
    x = 763,586,794.85

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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.