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Finding the Fourth Proportional to 12,602,511.60, 18,889,770.60 and 6,926,809.20

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Solution

The fourth proportional to 12,602,511.60, 18,889,770.60 and 6,926,809.20 is: 10,382,520.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,602,511.60 : 18,889,770.60 = 6,926,809.20 : x
  2. Step 2: Convert to fraction form
    12,602,511.60/18,889,770.60 = 6,926,809.20/x
  3. Step 3: Cross multiply
    12,602,511.60x = 18,889,770.60 × 6,926,809.20
  4. Step 4: Simplify right side
    12,602,511.60x = 130,845,836,777,969.53
  5. Step 5: Solve for x
    x = 130,845,836,777,969.53/12,602,511.60
  6. Step 6: Final answer
    x = 10,382,520.64

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1.5x scale

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.