Home / 21,307,490.64-31,957,736.76-9,173,687.40

Finding the Fourth Proportional to 21,307,490.64, 31,957,736.76 and 9,173,687.40

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Solution

The fourth proportional to 21,307,490.64, 31,957,736.76 and 9,173,687.40 is: 13,759,024.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,307,490.64 : 31,957,736.76 = 9,173,687.40 : x
  2. Step 2: Convert to fraction form
    21,307,490.64/31,957,736.76 = 9,173,687.40/x
  3. Step 3: Cross multiply
    21,307,490.64x = 31,957,736.76 × 9,173,687.40
  4. Step 4: Simplify right side
    21,307,490.64x = 293,170,287,047,728.88
  5. Step 5: Solve for x
    x = 293,170,287,047,728.88/21,307,490.64
  6. Step 6: Final answer
    x = 13,759,024.56

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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.