Home / 210,030,686.80-315,043,495.97-54,570,738.78

Finding the Fourth Proportional to 210,030,686.80, 315,043,495.97 and 54,570,738.78

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Solution

The fourth proportional to 210,030,686.80, 315,043,495.97 and 54,570,738.78 is: 81,855,449.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,030,686.80 : 315,043,495.97 = 54,570,738.78 : x
  2. Step 2: Convert to fraction form
    210,030,686.80/315,043,495.97 = 54,570,738.78/x
  3. Step 3: Cross multiply
    210,030,686.80x = 315,043,495.97 × 54,570,738.78
  4. Step 4: Simplify right side
    210,030,686.80x = 17,192,156,322,916,854
  5. Step 5: Solve for x
    x = 17,192,156,322,916,854/210,030,686.80
  6. Step 6: Final answer
    x = 81,855,449.72

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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.