Home / 12,087,878.40-18,145,814.40-7,300,972.80

Finding the Fourth Proportional to 12,087,878.40, 18,145,814.40 and 7,300,972.80

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Solution

The fourth proportional to 12,087,878.40, 18,145,814.40 and 7,300,972.80 is: 10,959,913.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087,878.40 : 18,145,814.40 = 7,300,972.80 : x
  2. Step 2: Convert to fraction form
    12,087,878.40/18,145,814.40 = 7,300,972.80/x
  3. Step 3: Cross multiply
    12,087,878.40x = 18,145,814.40 × 7,300,972.80
  4. Step 4: Simplify right side
    12,087,878.40x = 132,482,097,368,248.31
  5. Step 5: Solve for x
    x = 132,482,097,368,248.31/12,087,878.40
  6. Step 6: Final answer
    x = 10,959,913.14

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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.