Home / 8,718,132.60-13,078,341.54-2,880,378.90

Finding the Fourth Proportional to 8,718,132.60, 13,078,341.54 and 2,880,378.90

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Solution

The fourth proportional to 8,718,132.60, 13,078,341.54 and 2,880,378.90 is: 4,320,945.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718,132.60 : 13,078,341.54 = 2,880,378.90 : x
  2. Step 2: Convert to fraction form
    8,718,132.60/13,078,341.54 = 2,880,378.90/x
  3. Step 3: Cross multiply
    8,718,132.60x = 13,078,341.54 × 2,880,378.90
  4. Step 4: Simplify right side
    8,718,132.60x = 37,670,579,018,809.50
  5. Step 5: Solve for x
    x = 37,670,579,018,809.50/8,718,132.60
  6. Step 6: Final answer
    x = 4,320,945.87

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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.