Home / 56,677,853.34-78,239,571.69-38,103,765.76

Finding the Fourth Proportional to 56,677,853.34, 78,239,571.69 and 38,103,765.76

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Solution

The fourth proportional to 56,677,853.34, 78,239,571.69 and 38,103,765.76 is: 52,599,421.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,677,853.34 : 78,239,571.69 = 38,103,765.76 : x
  2. Step 2: Convert to fraction form
    56,677,853.34/78,239,571.69 = 38,103,765.76/x
  3. Step 3: Cross multiply
    56,677,853.34x = 78,239,571.69 × 38,103,765.76
  4. Step 4: Simplify right side
    56,677,853.34x = 2,981,222,312,838,487
  5. Step 5: Solve for x
    x = 2,981,222,312,838,487/56,677,853.34
  6. Step 6: Final answer
    x = 52,599,421.77

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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.