Home / 12,769,121.60-19,163,013.60-8,989,985.60

Finding the Fourth Proportional to 12,769,121.60, 19,163,013.60 and 8,989,985.60

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Solution

The fourth proportional to 12,769,121.60, 19,163,013.60 and 8,989,985.60 is: 13,491,547.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769,121.60 : 19,163,013.60 = 8,989,985.60 : x
  2. Step 2: Convert to fraction form
    12,769,121.60/19,163,013.60 = 8,989,985.60/x
  3. Step 3: Cross multiply
    12,769,121.60x = 19,163,013.60 × 8,989,985.60
  4. Step 4: Simplify right side
    12,769,121.60x = 172,275,216,316,604.16
  5. Step 5: Solve for x
    x = 172,275,216,316,604.16/12,769,121.60
  6. Step 6: Final answer
    x = 13,491,547.95

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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.