Home / 871,321,175.42-1,307,367,721.51-456,699,459.87

Finding the Fourth Proportional to 871,321,175.42, 1,307,367,721.51 and 456,699,459.87

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Solution

The fourth proportional to 871,321,175.42, 1,307,367,721.51 and 456,699,459.87 is: 685,251,488.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,321,175.42 : 1,307,367,721.51 = 456,699,459.87 : x
  2. Step 2: Convert to fraction form
    871,321,175.42/1,307,367,721.51 = 456,699,459.87/x
  3. Step 3: Cross multiply
    871,321,175.42x = 1,307,367,721.51 × 456,699,459.87
  4. Step 4: Simplify right side
    871,321,175.42x = 597,074,132,263,947,776
  5. Step 5: Solve for x
    x = 597,074,132,263,947,776/871,321,175.42
  6. Step 6: Final answer
    x = 685,251,488.33

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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.