Home / 77,979,042.95-107,610,684.53-42,696,206.96

Finding the Fourth Proportional to 77,979,042.95, 107,610,684.53 and 42,696,206.96

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Solution

The fourth proportional to 77,979,042.95, 107,610,684.53 and 42,696,206.96 is: 58,920,549.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,979,042.95 : 107,610,684.53 = 42,696,206.96 : x
  2. Step 2: Convert to fraction form
    77,979,042.95/107,610,684.53 = 42,696,206.96/x
  3. Step 3: Cross multiply
    77,979,042.95x = 107,610,684.53 × 42,696,206.96
  4. Step 4: Simplify right side
    77,979,042.95x = 4,594,568,057,048,616
  5. Step 5: Solve for x
    x = 4,594,568,057,048,616/77,979,042.95
  6. Step 6: Final answer
    x = 58,920,549.46

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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.