Home / 31,431,969.67-47,147,967.60-14,139,972.92

Finding the Fourth Proportional to 31,431,969.67, 47,147,967.60 and 14,139,972.92

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Solution

The fourth proportional to 31,431,969.67, 47,147,967.60 and 14,139,972.92 is: 21,209,965.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,431,969.67 : 47,147,967.60 = 14,139,972.92 : x
  2. Step 2: Convert to fraction form
    31,431,969.67/47,147,967.60 = 14,139,972.92/x
  3. Step 3: Cross multiply
    31,431,969.67x = 47,147,967.60 × 14,139,972.92
  4. Step 4: Simplify right side
    31,431,969.67x = 666,670,985,097,037.38
  5. Step 5: Solve for x
    x = 666,670,985,097,037.38/31,431,969.67
  6. Step 6: Final answer
    x = 21,209,965.27

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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.