Home / 10,290,332.49-15,421,783.46-5,431,496.78

Finding the Fourth Proportional to 10,290,332.49, 15,421,783.46 and 5,431,496.78

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Solution

The fourth proportional to 10,290,332.49, 15,421,783.46 and 5,431,496.78 is: 8,140,005.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290,332.49 : 15,421,783.46 = 5,431,496.78 : x
  2. Step 2: Convert to fraction form
    10,290,332.49/15,421,783.46 = 5,431,496.78/x
  3. Step 3: Cross multiply
    10,290,332.49x = 15,421,783.46 × 5,431,496.78
  4. Step 4: Simplify right side
    10,290,332.49x = 83,763,367,100,580.86
  5. Step 5: Solve for x
    x = 83,763,367,100,580.86/10,290,332.49
  6. Step 6: Final answer
    x = 8,140,005.89

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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.