Home / 21,259,068.60-31,880,778.84-16,718,987.88

Finding the Fourth Proportional to 21,259,068.60, 31,880,778.84 and 16,718,987.88

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Solution

The fourth proportional to 21,259,068.60, 31,880,778.84 and 16,718,987.88 is: 25,072,328.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,259,068.60 : 31,880,778.84 = 16,718,987.88 : x
  2. Step 2: Convert to fraction form
    21,259,068.60/31,880,778.84 = 16,718,987.88/x
  3. Step 3: Cross multiply
    21,259,068.60x = 31,880,778.84 × 16,718,987.88
  4. Step 4: Simplify right side
    21,259,068.60x = 533,014,355,030,920.50
  5. Step 5: Solve for x
    x = 533,014,355,030,920.50/21,259,068.60
  6. Step 6: Final answer
    x = 25,072,328.66

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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.