Home / 31,903,742.70-47,879,233.65-21,117,458.70

Finding the Fourth Proportional to 31,903,742.70, 47,879,233.65 and 21,117,458.70

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Solution

The fourth proportional to 31,903,742.70, 47,879,233.65 and 21,117,458.70 is: 31,691,822.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,903,742.70 : 47,879,233.65 = 21,117,458.70 : x
  2. Step 2: Convert to fraction form
    31,903,742.70/47,879,233.65 = 21,117,458.70/x
  3. Step 3: Cross multiply
    31,903,742.70x = 47,879,233.65 × 21,117,458.70
  4. Step 4: Simplify right side
    31,903,742.70x = 1,011,087,739,191,525.25
  5. Step 5: Solve for x
    x = 1,011,087,739,191,525.25/31,903,742.70
  6. Step 6: Final answer
    x = 31,691,822.14

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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.