Home / 689,606,408.80-951,677,000.88-376,360,726.72

Finding the Fourth Proportional to 689,606,408.80, 951,677,000.88 and 376,360,726.72

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Solution

The fourth proportional to 689,606,408.80, 951,677,000.88 and 376,360,726.72 is: 519,388,803.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,606,408.80 : 951,677,000.88 = 376,360,726.72 : x
  2. Step 2: Convert to fraction form
    689,606,408.80/951,677,000.88 = 376,360,726.72/x
  3. Step 3: Cross multiply
    689,606,408.80x = 951,677,000.88 × 376,360,726.72
  4. Step 4: Simplify right side
    689,606,408.80x = 358,173,847,653,906,880
  5. Step 5: Solve for x
    x = 358,173,847,653,906,880/689,606,408.80
  6. Step 6: Final answer
    x = 519,388,803.65

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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.