Home / 1,991,360,013.40-2,987,040,020.10-537,335,104.60

Finding the Fourth Proportional to 1,991,360,013.40, 2,987,040,020.10 and 537,335,104.60

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Solution

The fourth proportional to 1,991,360,013.40, 2,987,040,020.10 and 537,335,104.60 is: 806,002,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,360,013.40 : 2,987,040,020.10 = 537,335,104.60 : x
  2. Step 2: Convert to fraction form
    1,991,360,013.40/2,987,040,020.10 = 537,335,104.60/x
  3. Step 3: Cross multiply
    1,991,360,013.40x = 2,987,040,020.10 × 537,335,104.60
  4. Step 4: Simplify right side
    1,991,360,013.40x = 1,605,041,461,644,819,712
  5. Step 5: Solve for x
    x = 1,605,041,461,644,819,712/1,991,360,013.40
  6. Step 6: Final answer
    x = 806,002,656.90

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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.