Home / 12,602,705.60-18,879,175.20-7,538,974.40

Finding the Fourth Proportional to 12,602,705.60, 18,879,175.20 and 7,538,974.40

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Solution

The fourth proportional to 12,602,705.60, 18,879,175.20 and 7,538,974.40 is: 11,293,576.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,602,705.60 : 18,879,175.20 = 7,538,974.40 : x
  2. Step 2: Convert to fraction form
    12,602,705.60/18,879,175.20 = 7,538,974.40/x
  3. Step 3: Cross multiply
    12,602,705.60x = 18,879,175.20 × 7,538,974.40
  4. Step 4: Simplify right side
    12,602,705.60x = 142,329,618,525,914.88
  5. Step 5: Solve for x
    x = 142,329,618,525,914.88/12,602,705.60
  6. Step 6: Final answer
    x = 11,293,576.40

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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.