Home / 15,755,189.80-21,742,221.38-9,956,548.52

Finding the Fourth Proportional to 15,755,189.80, 21,742,221.38 and 9,956,548.52

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Solution

The fourth proportional to 15,755,189.80, 21,742,221.38 and 9,956,548.52 is: 13,740,074.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,755,189.80 : 21,742,221.38 = 9,956,548.52 : x
  2. Step 2: Convert to fraction form
    15,755,189.80/21,742,221.38 = 9,956,548.52/x
  3. Step 3: Cross multiply
    15,755,189.80x = 21,742,221.38 × 9,956,548.52
  4. Step 4: Simplify right side
    15,755,189.80x = 216,477,482,102,551.34
  5. Step 5: Solve for x
    x = 216,477,482,102,551.34/15,755,189.80
  6. Step 6: Final answer
    x = 13,740,074.53

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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.