Home / 1,252,804,015.44-1,728,479,499.48-723,975,343.20

Finding the Fourth Proportional to 1,252,804,015.44, 1,728,479,499.48 and 723,975,343.20

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Solution

The fourth proportional to 1,252,804,015.44, 1,728,479,499.48 and 723,975,343.20 is: 998,860,574.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,804,015.44 : 1,728,479,499.48 = 723,975,343.20 : x
  2. Step 2: Convert to fraction form
    1,252,804,015.44/1,728,479,499.48 = 723,975,343.20/x
  3. Step 3: Cross multiply
    1,252,804,015.44x = 1,728,479,499.48 × 723,975,343.20
  4. Step 4: Simplify right side
    1,252,804,015.44x = 1,251,376,538,850,197,248
  5. Step 5: Solve for x
    x = 1,251,376,538,850,197,248/1,252,804,015.44
  6. Step 6: Final answer
    x = 998,860,574.70

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Double scale
Find fourth proportional to 1,252,804,016.44, 1,728,479,500.86 and 723,975,344.20
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1.5x scale

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.