Home / 78,156,030.09-107,868,232.26-43,359,930.63

Finding the Fourth Proportional to 78,156,030.09, 107,868,232.26 and 43,359,930.63

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Solution

The fourth proportional to 78,156,030.09, 107,868,232.26 and 43,359,930.63 is: 59,843,866.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,156,030.09 : 107,868,232.26 = 43,359,930.63 : x
  2. Step 2: Convert to fraction form
    78,156,030.09/107,868,232.26 = 43,359,930.63/x
  3. Step 3: Cross multiply
    78,156,030.09x = 107,868,232.26 × 43,359,930.63
  4. Step 4: Simplify right side
    78,156,030.09x = 4,677,159,067,974,329
  5. Step 5: Solve for x
    x = 4,677,159,067,974,329/78,156,030.09
  6. Step 6: Final answer
    x = 59,843,866.97

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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.