Home / 12,345,014.49-18,442,437.63-7,991,599.26

Finding the Fourth Proportional to 12,345,014.49, 18,442,437.63 and 7,991,599.26

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Solution

The fourth proportional to 12,345,014.49, 18,442,437.63 and 7,991,599.26 is: 11,938,792.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345,014.49 : 18,442,437.63 = 7,991,599.26 : x
  2. Step 2: Convert to fraction form
    12,345,014.49/18,442,437.63 = 7,991,599.26/x
  3. Step 3: Cross multiply
    12,345,014.49x = 18,442,437.63 × 7,991,599.26
  4. Step 4: Simplify right side
    12,345,014.49x = 147,384,570,916,504.16
  5. Step 5: Solve for x
    x = 147,384,570,916,504.16/12,345,014.49
  6. Step 6: Final answer
    x = 11,938,792.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.