Home / 981,673,129.86-1,472,400,919.35-351,380,014.98

Finding the Fourth Proportional to 981,673,129.86, 1,472,400,919.35 and 351,380,014.98

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Solution

The fourth proportional to 981,673,129.86, 1,472,400,919.35 and 351,380,014.98 is: 527,031,087.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,673,129.86 : 1,472,400,919.35 = 351,380,014.98 : x
  2. Step 2: Convert to fraction form
    981,673,129.86/1,472,400,919.35 = 351,380,014.98/x
  3. Step 3: Cross multiply
    981,673,129.86x = 1,472,400,919.35 × 351,380,014.98
  4. Step 4: Simplify right side
    981,673,129.86x = 517,372,257,097,768,768
  5. Step 5: Solve for x
    x = 517,372,257,097,768,768/981,673,129.86
  6. Step 6: Final answer
    x = 527,031,087.40

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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.