Home / 258,624,073.60-387,992,097.60-76,889,622.40

Finding the Fourth Proportional to 258,624,073.60, 387,992,097.60 and 76,889,622.40

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Solution

The fourth proportional to 258,624,073.60, 387,992,097.60 and 76,889,622.40 is: 115,351,078.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,624,073.60 : 387,992,097.60 = 76,889,622.40 : x
  2. Step 2: Convert to fraction form
    258,624,073.60/387,992,097.60 = 76,889,622.40/x
  3. Step 3: Cross multiply
    258,624,073.60x = 387,992,097.60 × 76,889,622.40
  4. Step 4: Simplify right side
    258,624,073.60x = 29,832,565,878,647,952
  5. Step 5: Solve for x
    x = 29,832,565,878,647,952/258,624,073.60
  6. Step 6: Final answer
    x = 115,351,078.74

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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.