Home / 77,280,029.60-115,920,044.40-54,605,213.60

Finding the Fourth Proportional to 77,280,029.60, 115,920,044.40 and 54,605,213.60

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Solution

The fourth proportional to 77,280,029.60, 115,920,044.40 and 54,605,213.60 is: 81,907,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,280,029.60 : 115,920,044.40 = 54,605,213.60 : x
  2. Step 2: Convert to fraction form
    77,280,029.60/115,920,044.40 = 54,605,213.60/x
  3. Step 3: Cross multiply
    77,280,029.60x = 115,920,044.40 × 54,605,213.60
  4. Step 4: Simplify right side
    77,280,029.60x = 6,329,838,784,983,484
  5. Step 5: Solve for x
    x = 6,329,838,784,983,484/77,280,029.60
  6. Step 6: Final answer
    x = 81,907,820.40

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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.