Home / 289,387,585.20-434,081,377.80-73,965,428.40

Finding the Fourth Proportional to 289,387,585.20, 434,081,377.80 and 73,965,428.40

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Solution

The fourth proportional to 289,387,585.20, 434,081,377.80 and 73,965,428.40 is: 110,948,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,387,585.20 : 434,081,377.80 = 73,965,428.40 : x
  2. Step 2: Convert to fraction form
    289,387,585.20/434,081,377.80 = 73,965,428.40/x
  3. Step 3: Cross multiply
    289,387,585.20x = 434,081,377.80 × 73,965,428.40
  4. Step 4: Simplify right side
    289,387,585.20x = 32,107,015,069,439,252
  5. Step 5: Solve for x
    x = 32,107,015,069,439,252/289,387,585.20
  6. Step 6: Final answer
    x = 110,948,142.60

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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.