Home / 31,780,435.68-47,670,423.84-21,045,786.84

Finding the Fourth Proportional to 31,780,435.68, 47,670,423.84 and 21,045,786.84

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Solution

The fourth proportional to 31,780,435.68, 47,670,423.84 and 21,045,786.84 is: 31,568,528.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,780,435.68 : 47,670,423.84 = 21,045,786.84 : x
  2. Step 2: Convert to fraction form
    31,780,435.68/47,670,423.84 = 21,045,786.84/x
  3. Step 3: Cross multiply
    31,780,435.68x = 47,670,423.84 × 21,045,786.84
  4. Step 4: Simplify right side
    31,780,435.68x = 1,003,261,578,709,094.38
  5. Step 5: Solve for x
    x = 1,003,261,578,709,094.38/31,780,435.68
  6. Step 6: Final answer
    x = 31,568,528.16

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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.