Home / 289,387,565.20-434,081,347.80-73,965,408.40

Finding the Fourth Proportional to 289,387,565.20, 434,081,347.80 and 73,965,408.40

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Solution

The fourth proportional to 289,387,565.20, 434,081,347.80 and 73,965,408.40 is: 110,948,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,387,565.20 : 434,081,347.80 = 73,965,408.40 : x
  2. Step 2: Convert to fraction form
    289,387,565.20/434,081,347.80 = 73,965,408.40/x
  3. Step 3: Cross multiply
    289,387,565.20x = 434,081,347.80 × 73,965,408.40
  4. Step 4: Simplify right side
    289,387,565.20x = 32,107,004,168,849,444
  5. Step 5: Solve for x
    x = 32,107,004,168,849,444/289,387,565.20
  6. Step 6: Final answer
    x = 110,948,112.60

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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.