Home / 78,606,676.15-117,931,888.51-34,294,838.83

Finding the Fourth Proportional to 78,606,676.15, 117,931,888.51 and 34,294,838.83

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Solution

The fourth proportional to 78,606,676.15, 117,931,888.51 and 34,294,838.83 is: 51,451,801.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,606,676.15 : 117,931,888.51 = 34,294,838.83 : x
  2. Step 2: Convert to fraction form
    78,606,676.15/117,931,888.51 = 34,294,838.83/x
  3. Step 3: Cross multiply
    78,606,676.15x = 117,931,888.51 × 34,294,838.83
  4. Step 4: Simplify right side
    78,606,676.15x = 4,044,455,108,987,412
  5. Step 5: Solve for x
    x = 4,044,455,108,987,412/78,606,676.15
  6. Step 6: Final answer
    x = 51,451,801.64

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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.