Home / 31,686,733.19-47,448,242.10-21,869,090.75

Finding the Fourth Proportional to 31,686,733.19, 47,448,242.10 and 21,869,090.75

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Solution

The fourth proportional to 31,686,733.19, 47,448,242.10 and 21,869,090.75 is: 32,747,140.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,686,733.19 : 47,448,242.10 = 21,869,090.75 : x
  2. Step 2: Convert to fraction form
    31,686,733.19/47,448,242.10 = 21,869,090.75/x
  3. Step 3: Cross multiply
    31,686,733.19x = 47,448,242.10 × 21,869,090.75
  4. Step 4: Simplify right side
    31,686,733.19x = 1,037,649,912,449,482.12
  5. Step 5: Solve for x
    x = 1,037,649,912,449,482.12/31,686,733.19
  6. Step 6: Final answer
    x = 32,747,140.78

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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.