Home / 16,890,100.80-23,303,868.63-9,918,549.81

Finding the Fourth Proportional to 16,890,100.80, 23,303,868.63 and 9,918,549.81

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Solution

The fourth proportional to 16,890,100.80, 23,303,868.63 and 9,918,549.81 is: 13,684,973.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,890,100.80 : 23,303,868.63 = 9,918,549.81 : x
  2. Step 2: Convert to fraction form
    16,890,100.80/23,303,868.63 = 9,918,549.81/x
  3. Step 3: Cross multiply
    16,890,100.80x = 23,303,868.63 × 9,918,549.81
  4. Step 4: Simplify right side
    16,890,100.80x = 231,140,581,772,351.47
  5. Step 5: Solve for x
    x = 231,140,581,772,351.47/16,890,100.80
  6. Step 6: Final answer
    x = 13,684,973.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.