Home / 689,614,748.86-951,655,073.58-376,351,204.72

Finding the Fourth Proportional to 689,614,748.86, 951,655,073.58 and 376,351,204.72

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Solution

The fourth proportional to 689,614,748.86, 951,655,073.58 and 376,351,204.72 is: 519,357,415.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,614,748.86 : 951,655,073.58 = 376,351,204.72 : x
  2. Step 2: Convert to fraction form
    689,614,748.86/951,655,073.58 = 376,351,204.72/x
  3. Step 3: Cross multiply
    689,614,748.86x = 951,655,073.58 × 376,351,204.72
  4. Step 4: Simplify right side
    689,614,748.86x = 358,156,533,419,733,312
  5. Step 5: Solve for x
    x = 358,156,533,419,733,312/689,614,748.86
  6. Step 6: Final answer
    x = 519,357,415.15

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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.