Home / 1,303,345,888.40-1,957,286,314.20-691,125,856.40

Finding the Fourth Proportional to 1,303,345,888.40, 1,957,286,314.20 and 691,125,856.40

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Solution

The fourth proportional to 1,303,345,888.40, 1,957,286,314.20 and 691,125,856.40 is: 1,037,891,163.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,345,888.40 : 1,957,286,314.20 = 691,125,856.40 : x
  2. Step 2: Convert to fraction form
    1,303,345,888.40/1,957,286,314.20 = 691,125,856.40/x
  3. Step 3: Cross multiply
    1,303,345,888.40x = 1,957,286,314.20 × 691,125,856.40
  4. Step 4: Simplify right side
    1,303,345,888.40x = 1,352,731,180,121,474,560
  5. Step 5: Solve for x
    x = 1,352,731,180,121,474,560/1,303,345,888.40
  6. Step 6: Final answer
    x = 1,037,891,163.17

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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.