Home / 21,259,069.60-31,880,780.34-16,718,988.88

Finding the Fourth Proportional to 21,259,069.60, 31,880,780.34 and 16,718,988.88

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Solution

The fourth proportional to 21,259,069.60, 31,880,780.34 and 16,718,988.88 is: 25,072,330.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,259,069.60 : 31,880,780.34 = 16,718,988.88 : x
  2. Step 2: Convert to fraction form
    21,259,069.60/31,880,780.34 = 16,718,988.88/x
  3. Step 3: Cross multiply
    21,259,069.60x = 31,880,780.34 × 16,718,988.88
  4. Step 4: Simplify right side
    21,259,069.60x = 533,014,411,990,182.62
  5. Step 5: Solve for x
    x = 533,014,411,990,182.62/21,259,069.60
  6. Step 6: Final answer
    x = 25,072,330.16

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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.