Home / 15,692,861.60-21,656,786.64-8,817,322.40

Finding the Fourth Proportional to 15,692,861.60, 21,656,786.64 and 8,817,322.40

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Solution

The fourth proportional to 15,692,861.60, 21,656,786.64 and 8,817,322.40 is: 12,168,263.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,692,861.60 : 21,656,786.64 = 8,817,322.40 : x
  2. Step 2: Convert to fraction form
    15,692,861.60/21,656,786.64 = 8,817,322.40/x
  3. Step 3: Cross multiply
    15,692,861.60x = 21,656,786.64 × 8,817,322.40
  4. Step 4: Simplify right side
    15,692,861.60x = 190,954,869,952,892.75
  5. Step 5: Solve for x
    x = 190,954,869,952,892.75/15,692,861.60
  6. Step 6: Final answer
    x = 12,168,263.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.