Home / 20,623,747.84-30,935,424.72-12,538,955.68

Finding the Fourth Proportional to 20,623,747.84, 30,935,424.72 and 12,538,955.68

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Solution

The fourth proportional to 20,623,747.84, 30,935,424.72 and 12,538,955.68 is: 18,808,313.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,623,747.84 : 30,935,424.72 = 12,538,955.68 : x
  2. Step 2: Convert to fraction form
    20,623,747.84/30,935,424.72 = 12,538,955.68/x
  3. Step 3: Cross multiply
    20,623,747.84x = 30,935,424.72 × 12,538,955.68
  4. Step 4: Simplify right side
    20,623,747.84x = 387,897,919,506,056.38
  5. Step 5: Solve for x
    x = 387,897,919,506,056.38/20,623,747.84
  6. Step 6: Final answer
    x = 18,808,313.72

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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.