Home / 21,791,538.81-30,071,142.95-12,000,068.73

Finding the Fourth Proportional to 21,791,538.81, 30,071,142.95 and 12,000,068.73

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Solution

The fourth proportional to 21,791,538.81, 30,071,142.95 and 12,000,068.73 is: 16,559,444.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,791,538.81 : 30,071,142.95 = 12,000,068.73 : x
  2. Step 2: Convert to fraction form
    21,791,538.81/30,071,142.95 = 12,000,068.73/x
  3. Step 3: Cross multiply
    21,791,538.81x = 30,071,142.95 × 12,000,068.73
  4. Step 4: Simplify right side
    21,791,538.81x = 360,855,782,129,654.62
  5. Step 5: Solve for x
    x = 360,855,782,129,654.62/21,791,538.81
  6. Step 6: Final answer
    x = 16,559,444.71

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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.