Home / 21,292,275.72-31,951,062.54-7,838,551.56

Finding the Fourth Proportional to 21,292,275.72, 31,951,062.54 and 7,838,551.56

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Solution

The fourth proportional to 21,292,275.72, 31,951,062.54 and 7,838,551.56 is: 11,762,483.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,292,275.72 : 31,951,062.54 = 7,838,551.56 : x
  2. Step 2: Convert to fraction form
    21,292,275.72/31,951,062.54 = 7,838,551.56/x
  3. Step 3: Cross multiply
    21,292,275.72x = 31,951,062.54 × 7,838,551.56
  4. Step 4: Simplify right side
    21,292,275.72x = 250,450,051,116,574.53
  5. Step 5: Solve for x
    x = 250,450,051,116,574.53/21,292,275.72
  6. Step 6: Final answer
    x = 11,762,483.94

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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.