Home / 12,781,380.60-19,172,070.90-9,926,033.40

Finding the Fourth Proportional to 12,781,380.60, 19,172,070.90 and 9,926,033.40

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Solution

The fourth proportional to 12,781,380.60, 19,172,070.90 and 9,926,033.40 is: 14,889,050.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,380.60 : 19,172,070.90 = 9,926,033.40 : x
  2. Step 2: Convert to fraction form
    12,781,380.60/19,172,070.90 = 9,926,033.40/x
  3. Step 3: Cross multiply
    12,781,380.60x = 19,172,070.90 × 9,926,033.40
  4. Step 4: Simplify right side
    12,781,380.60x = 190,302,616,100,568.06
  5. Step 5: Solve for x
    x = 190,302,616,100,568.06/12,781,380.60
  6. Step 6: Final answer
    x = 14,889,050.10

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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.