Home / 10,109,721.60-15,133,089.60-7,275,369.60

Finding the Fourth Proportional to 10,109,721.60, 15,133,089.60 and 7,275,369.60

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Solution

The fourth proportional to 10,109,721.60, 15,133,089.60 and 7,275,369.60 is: 10,890,390.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109,721.60 : 15,133,089.60 = 7,275,369.60 : x
  2. Step 2: Convert to fraction form
    10,109,721.60/15,133,089.60 = 7,275,369.60/x
  3. Step 3: Cross multiply
    10,109,721.60x = 15,133,089.60 × 7,275,369.60
  4. Step 4: Simplify right side
    10,109,721.60x = 110,098,820,029,916.16
  5. Step 5: Solve for x
    x = 110,098,820,029,916.16/10,109,721.60
  6. Step 6: Final answer
    x = 10,890,390.89

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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.