Home / 78,079,645.47-116,421,415.55-75,934,455.89

Finding the Fourth Proportional to 78,079,645.47, 116,421,415.55 and 75,934,455.89

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Solution

The fourth proportional to 78,079,645.47, 116,421,415.55 and 75,934,455.89 is: 113,222,809.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,079,645.47 : 116,421,415.55 = 75,934,455.89 : x
  2. Step 2: Convert to fraction form
    78,079,645.47/116,421,415.55 = 75,934,455.89/x
  3. Step 3: Cross multiply
    78,079,645.47x = 116,421,415.55 × 75,934,455.89
  4. Step 4: Simplify right side
    78,079,645.47x = 8,840,396,843,353,163
  5. Step 5: Solve for x
    x = 8,840,396,843,353,163/78,079,645.47
  6. Step 6: Final answer
    x = 113,222,809.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.