Home / 1,388,016,043.40-2,082,024,065.10-1,326,794,040.20

Finding the Fourth Proportional to 1,388,016,043.40, 2,082,024,065.10 and 1,326,794,040.20

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Solution

The fourth proportional to 1,388,016,043.40, 2,082,024,065.10 and 1,326,794,040.20 is: 1,990,191,060.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,016,043.40 : 2,082,024,065.10 = 1,326,794,040.20 : x
  2. Step 2: Convert to fraction form
    1,388,016,043.40/2,082,024,065.10 = 1,326,794,040.20/x
  3. Step 3: Cross multiply
    1,388,016,043.40x = 2,082,024,065.10 × 1,326,794,040.20
  4. Step 4: Simplify right side
    1,388,016,043.40x = 2,762,417,121,127,656,960
  5. Step 5: Solve for x
    x = 2,762,417,121,127,656,960/1,388,016,043.40
  6. Step 6: Final answer
    x = 1,990,191,060.30

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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.