Home / 77,280,129.60-115,920,194.40-41,448,321.60

Finding the Fourth Proportional to 77,280,129.60, 115,920,194.40 and 41,448,321.60

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Solution

The fourth proportional to 77,280,129.60, 115,920,194.40 and 41,448,321.60 is: 62,172,482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,280,129.60 : 115,920,194.40 = 41,448,321.60 : x
  2. Step 2: Convert to fraction form
    77,280,129.60/115,920,194.40 = 41,448,321.60/x
  3. Step 3: Cross multiply
    77,280,129.60x = 115,920,194.40 × 41,448,321.60
  4. Step 4: Simplify right side
    77,280,129.60x = 4,804,697,497,425,719
  5. Step 5: Solve for x
    x = 4,804,697,497,425,719/77,280,129.60
  6. Step 6: Final answer
    x = 62,172,482.40

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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.