Home / 289,417,565.97-399,351,281.13-171,939,876.93

Finding the Fourth Proportional to 289,417,565.97, 399,351,281.13 and 171,939,876.93

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Solution

The fourth proportional to 289,417,565.97, 399,351,281.13 and 171,939,876.93 is: 237,250,319.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,417,565.97 : 399,351,281.13 = 171,939,876.93 : x
  2. Step 2: Convert to fraction form
    289,417,565.97/399,351,281.13 = 171,939,876.93/x
  3. Step 3: Cross multiply
    289,417,565.97x = 399,351,281.13 × 171,939,876.93
  4. Step 4: Simplify right side
    289,417,565.97x = 68,664,410,129,330,032
  5. Step 5: Solve for x
    x = 68,664,410,129,330,032/289,417,565.97
  6. Step 6: Final answer
    x = 237,250,319.96

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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.