Home / 12,428,030-17,151,213.62-6,921,404.79

Finding the Fourth Proportional to 12,428,030, 17,151,213.62 and 6,921,404.79

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Solution

The fourth proportional to 12,428,030, 17,151,213.62 and 6,921,404.79 is: 9,551,835.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,428,030 : 17,151,213.62 = 6,921,404.79 : x
  2. Step 2: Convert to fraction form
    12,428,030/17,151,213.62 = 6,921,404.79/x
  3. Step 3: Cross multiply
    12,428,030x = 17,151,213.62 × 6,921,404.79
  4. Step 4: Simplify right side
    12,428,030x = 118,710,492,103,781.25
  5. Step 5: Solve for x
    x = 118,710,492,103,781.25/12,428,030
  6. Step 6: Final answer
    x = 9,551,835.01

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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.