Home / 12,482,681.70-18,724,022.55-10,656,099.30

Finding the Fourth Proportional to 12,482,681.70, 18,724,022.55 and 10,656,099.30

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Solution

The fourth proportional to 12,482,681.70, 18,724,022.55 and 10,656,099.30 is: 15,984,148.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482,681.70 : 18,724,022.55 = 10,656,099.30 : x
  2. Step 2: Convert to fraction form
    12,482,681.70/18,724,022.55 = 10,656,099.30/x
  3. Step 3: Cross multiply
    12,482,681.70x = 18,724,022.55 × 10,656,099.30
  4. Step 4: Simplify right side
    12,482,681.70x = 199,525,043,588,239.25
  5. Step 5: Solve for x
    x = 199,525,043,588,239.25/12,482,681.70
  6. Step 6: Final answer
    x = 15,984,148.95

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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.