Home / 100,645,669.52-150,771,206.48-52,155,331.78

Finding the Fourth Proportional to 100,645,669.52, 150,771,206.48 and 52,155,331.78

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Solution

The fourth proportional to 100,645,669.52, 150,771,206.48 and 52,155,331.78 is: 78,130,756.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,645,669.52 : 150,771,206.48 = 52,155,331.78 : x
  2. Step 2: Convert to fraction form
    100,645,669.52/150,771,206.48 = 52,155,331.78/x
  3. Step 3: Cross multiply
    100,645,669.52x = 150,771,206.48 × 52,155,331.78
  4. Step 4: Simplify right side
    100,645,669.52x = 7,863,522,296,835,286
  5. Step 5: Solve for x
    x = 7,863,522,296,835,286/100,645,669.52
  6. Step 6: Final answer
    x = 78,130,756.49

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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.