Home / 291,315,282.25-402,015,250.79-157,353,197.87

Finding the Fourth Proportional to 291,315,282.25, 402,015,250.79 and 157,353,197.87

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Solution

The fourth proportional to 291,315,282.25, 402,015,250.79 and 157,353,197.87 is: 217,147,500.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,315,282.25 : 402,015,250.79 = 157,353,197.87 : x
  2. Step 2: Convert to fraction form
    291,315,282.25/402,015,250.79 = 157,353,197.87/x
  3. Step 3: Cross multiply
    291,315,282.25x = 402,015,250.79 × 157,353,197.87
  4. Step 4: Simplify right side
    291,315,282.25x = 63,258,385,306,007,640
  5. Step 5: Solve for x
    x = 63,258,385,306,007,640/291,315,282.25
  6. Step 6: Final answer
    x = 217,147,500.18

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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.