Home / 1,991,605,439-2,749,655,867.06-1,267,801,761.15

Finding the Fourth Proportional to 1,991,605,439, 2,749,655,867.06 and 1,267,801,761.15

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Solution

The fourth proportional to 1,991,605,439, 2,749,655,867.06 and 1,267,801,761.15 is: 1,750,356,010.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,605,439 : 2,749,655,867.06 = 1,267,801,761.15 : x
  2. Step 2: Convert to fraction form
    1,991,605,439/2,749,655,867.06 = 1,267,801,761.15/x
  3. Step 3: Cross multiply
    1,991,605,439x = 2,749,655,867.06 × 1,267,801,761.15
  4. Step 4: Simplify right side
    1,991,605,439x = 3,486,018,550,815,098,368
  5. Step 5: Solve for x
    x = 3,486,018,550,815,098,368/1,991,605,439
  6. Step 6: Final answer
    x = 1,750,356,010.56

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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.