Home / 31,889,979.06-47,823,158.61-10,318,985.70

Finding the Fourth Proportional to 31,889,979.06, 47,823,158.61 and 10,318,985.70

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Solution

The fourth proportional to 31,889,979.06, 47,823,158.61 and 10,318,985.70 is: 15,474,657.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,889,979.06 : 47,823,158.61 = 10,318,985.70 : x
  2. Step 2: Convert to fraction form
    31,889,979.06/47,823,158.61 = 10,318,985.70/x
  3. Step 3: Cross multiply
    31,889,979.06x = 47,823,158.61 × 10,318,985.70
  4. Step 4: Simplify right side
    31,889,979.06x = 493,486,489,825,421.81
  5. Step 5: Solve for x
    x = 493,486,489,825,421.81/31,889,979.06
  6. Step 6: Final answer
    x = 15,474,657.07

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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.