Home / 689,664,005.10-1,034,496,007.65-662,454,225.90

Finding the Fourth Proportional to 689,664,005.10, 1,034,496,007.65 and 662,454,225.90

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Solution

The fourth proportional to 689,664,005.10, 1,034,496,007.65 and 662,454,225.90 is: 993,681,338.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,664,005.10 : 1,034,496,007.65 = 662,454,225.90 : x
  2. Step 2: Convert to fraction form
    689,664,005.10/1,034,496,007.65 = 662,454,225.90/x
  3. Step 3: Cross multiply
    689,664,005.10x = 1,034,496,007.65 × 662,454,225.90
  4. Step 4: Simplify right side
    689,664,005.10x = 685,306,251,944,421,248
  5. Step 5: Solve for x
    x = 685,306,251,944,421,248/689,664,005.10
  6. Step 6: Final answer
    x = 993,681,338.85

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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.