Home / 77,280,029.10-115,920,043.65-54,605,213.10

Finding the Fourth Proportional to 77,280,029.10, 115,920,043.65 and 54,605,213.10

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Solution

The fourth proportional to 77,280,029.10, 115,920,043.65 and 54,605,213.10 is: 81,907,819.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,280,029.10 : 115,920,043.65 = 54,605,213.10 : x
  2. Step 2: Convert to fraction form
    77,280,029.10/115,920,043.65 = 54,605,213.10/x
  3. Step 3: Cross multiply
    77,280,029.10x = 115,920,043.65 × 54,605,213.10
  4. Step 4: Simplify right side
    77,280,029.10x = 6,329,838,686,069,552
  5. Step 5: Solve for x
    x = 6,329,838,686,069,552/77,280,029.10
  6. Step 6: Final answer
    x = 81,907,819.65

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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.