Home / 291,363,992.20-436,479,117.90-176,005,865.80

Finding the Fourth Proportional to 291,363,992.20, 436,479,117.90 and 176,005,865.80

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Solution

The fourth proportional to 291,363,992.20, 436,479,117.90 and 176,005,865.80 is: 263,666,366.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,363,992.20 : 436,479,117.90 = 176,005,865.80 : x
  2. Step 2: Convert to fraction form
    291,363,992.20/436,479,117.90 = 176,005,865.80/x
  3. Step 3: Cross multiply
    291,363,992.20x = 436,479,117.90 × 176,005,865.80
  4. Step 4: Simplify right side
    291,363,992.20x = 76,822,885,049,609,776
  5. Step 5: Solve for x
    x = 76,822,885,049,609,776/291,363,992.20
  6. Step 6: Final answer
    x = 263,666,366.15

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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.