Home / 78,397,316.29-117,570,798.65-25,863,178.62

Finding the Fourth Proportional to 78,397,316.29, 117,570,798.65 and 25,863,178.62

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Solution

The fourth proportional to 78,397,316.29, 117,570,798.65 and 25,863,178.62 is: 38,786,462.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,397,316.29 : 117,570,798.65 = 25,863,178.62 : x
  2. Step 2: Convert to fraction form
    78,397,316.29/117,570,798.65 = 25,863,178.62/x
  3. Step 3: Cross multiply
    78,397,316.29x = 117,570,798.65 × 25,863,178.62
  4. Step 4: Simplify right side
    78,397,316.29x = 3,040,754,565,945,927.50
  5. Step 5: Solve for x
    x = 3,040,754,565,945,927.50/78,397,316.29
  6. Step 6: Final answer
    x = 38,786,462.47

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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.