Home / 10,421,330.70-15,632,032.52-7,379,496.40

Finding the Fourth Proportional to 10,421,330.70, 15,632,032.52 and 7,379,496.40

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Solution

The fourth proportional to 10,421,330.70, 15,632,032.52 and 7,379,496.40 is: 11,069,270.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421,330.70 : 15,632,032.52 = 7,379,496.40 : x
  2. Step 2: Convert to fraction form
    10,421,330.70/15,632,032.52 = 7,379,496.40/x
  3. Step 3: Cross multiply
    10,421,330.70x = 15,632,032.52 × 7,379,496.40
  4. Step 4: Simplify right side
    10,421,330.70x = 115,356,527,706,022.94
  5. Step 5: Solve for x
    x = 115,356,527,706,022.94/10,421,330.70
  6. Step 6: Final answer
    x = 11,069,270.42

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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.