Home / 77,280,140.10-115,920,210.15-54,605,324.10

Finding the Fourth Proportional to 77,280,140.10, 115,920,210.15 and 54,605,324.10

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Solution

The fourth proportional to 77,280,140.10, 115,920,210.15 and 54,605,324.10 is: 81,907,986.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,280,140.10 : 115,920,210.15 = 54,605,324.10 : x
  2. Step 2: Convert to fraction form
    77,280,140.10/115,920,210.15 = 54,605,324.10/x
  3. Step 3: Cross multiply
    77,280,140.10x = 115,920,210.15 × 54,605,324.10
  4. Step 4: Simplify right side
    77,280,140.10x = 6,329,860,644,980,860
  5. Step 5: Solve for x
    x = 6,329,860,644,980,860/77,280,140.10
  6. Step 6: Final answer
    x = 81,907,986.15

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Similar ratio
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1.5x scale

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.