Home / 27,774,421.84-38,327,011.28-15,383,780.72

Finding the Fourth Proportional to 27,774,421.84, 38,327,011.28 and 15,383,780.72

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Solution

The fourth proportional to 27,774,421.84, 38,327,011.28 and 15,383,780.72 is: 21,228,680.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,774,421.84 : 38,327,011.28 = 15,383,780.72 : x
  2. Step 2: Convert to fraction form
    27,774,421.84/38,327,011.28 = 15,383,780.72/x
  3. Step 3: Cross multiply
    27,774,421.84x = 38,327,011.28 × 15,383,780.72
  4. Step 4: Simplify right side
    27,774,421.84x = 589,614,337,184,486.62
  5. Step 5: Solve for x
    x = 589,614,337,184,486.62/27,774,421.84
  6. Step 6: Final answer
    x = 21,228,680.86

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1.5x scale

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.