Home / 20,710,765.34-31,066,147.12-19,675,147.40

Finding the Fourth Proportional to 20,710,765.34, 31,066,147.12 and 19,675,147.40

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Solution

The fourth proportional to 20,710,765.34, 31,066,147.12 and 19,675,147.40 is: 29,512,720.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710,765.34 : 31,066,147.12 = 19,675,147.40 : x
  2. Step 2: Convert to fraction form
    20,710,765.34/31,066,147.12 = 19,675,147.40/x
  3. Step 3: Cross multiply
    20,710,765.34x = 31,066,147.12 × 19,675,147.40
  4. Step 4: Simplify right side
    20,710,765.34x = 611,231,023,736,085.50
  5. Step 5: Solve for x
    x = 611,231,023,736,085.50/20,710,765.34
  6. Step 6: Final answer
    x = 29,512,720.25

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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.