Home / 78,282,332.07-117,422,750.42-47,585,386.84

Finding the Fourth Proportional to 78,282,332.07, 117,422,750.42 and 47,585,386.84

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Solution

The fourth proportional to 78,282,332.07, 117,422,750.42 and 47,585,386.84 is: 71,377,625.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,282,332.07 : 117,422,750.42 = 47,585,386.84 : x
  2. Step 2: Convert to fraction form
    78,282,332.07/117,422,750.42 = 47,585,386.84/x
  3. Step 3: Cross multiply
    78,282,332.07x = 117,422,750.42 × 47,585,386.84
  4. Step 4: Simplify right side
    78,282,332.07x = 5,587,607,002,461,325
  5. Step 5: Solve for x
    x = 5,587,607,002,461,325/78,282,332.07
  6. Step 6: Final answer
    x = 71,377,625.76

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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.