Home / 291,066,529.20-436,599,793.80-138,011,521.20

Finding the Fourth Proportional to 291,066,529.20, 436,599,793.80 and 138,011,521.20

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Solution

The fourth proportional to 291,066,529.20, 436,599,793.80 and 138,011,521.20 is: 207,017,281.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,066,529.20 : 436,599,793.80 = 138,011,521.20 : x
  2. Step 2: Convert to fraction form
    291,066,529.20/436,599,793.80 = 138,011,521.20/x
  3. Step 3: Cross multiply
    291,066,529.20x = 436,599,793.80 × 138,011,521.20
  4. Step 4: Simplify right side
    291,066,529.20x = 60,255,801,697,944,328
  5. Step 5: Solve for x
    x = 60,255,801,697,944,328/291,066,529.20
  6. Step 6: Final answer
    x = 207,017,281.80

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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.