Home / 53,153,863.20-79,730,794.80-45,501,112.80

Finding the Fourth Proportional to 53,153,863.20, 79,730,794.80 and 45,501,112.80

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Solution

The fourth proportional to 53,153,863.20, 79,730,794.80 and 45,501,112.80 is: 68,251,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,153,863.20 : 79,730,794.80 = 45,501,112.80 : x
  2. Step 2: Convert to fraction form
    53,153,863.20/79,730,794.80 = 45,501,112.80/x
  3. Step 3: Cross multiply
    53,153,863.20x = 79,730,794.80 × 45,501,112.80
  4. Step 4: Simplify right side
    53,153,863.20x = 3,627,839,887,828,453
  5. Step 5: Solve for x
    x = 3,627,839,887,828,453/53,153,863.20
  6. Step 6: Final answer
    x = 68,251,669.20

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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.