Home / 31,683,909.72-43,759,459.26-21,413,057.88

Finding the Fourth Proportional to 31,683,909.72, 43,759,459.26 and 21,413,057.88

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Solution

The fourth proportional to 31,683,909.72, 43,759,459.26 and 21,413,057.88 is: 29,574,122.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,683,909.72 : 43,759,459.26 = 21,413,057.88 : x
  2. Step 2: Convert to fraction form
    31,683,909.72/43,759,459.26 = 21,413,057.88/x
  3. Step 3: Cross multiply
    31,683,909.72x = 43,759,459.26 × 21,413,057.88
  4. Step 4: Simplify right side
    31,683,909.72x = 937,023,833,931,881.88
  5. Step 5: Solve for x
    x = 937,023,833,931,881.88/31,683,909.72
  6. Step 6: Final answer
    x = 29,574,122.71

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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.