Home / 689,593,500.10-1,034,387,528.55-204,919,308.10

Finding the Fourth Proportional to 689,593,500.10, 1,034,387,528.55 and 204,919,308.10

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Solution

The fourth proportional to 689,593,500.10, 1,034,387,528.55 and 204,919,308.10 is: 307,378,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,593,500.10 : 1,034,387,528.55 = 204,919,308.10 : x
  2. Step 2: Convert to fraction form
    689,593,500.10/1,034,387,528.55 = 204,919,308.10/x
  3. Step 3: Cross multiply
    689,593,500.10x = 1,034,387,528.55 × 204,919,308.10
  4. Step 4: Simplify right side
    689,593,500.10x = 211,965,976,657,734,976
  5. Step 5: Solve for x
    x = 211,965,976,657,734,976/689,593,500.10
  6. Step 6: Final answer
    x = 307,378,153.40

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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.