Home / 31,076,764.09-42,894,205.37-18,357,616.51

Finding the Fourth Proportional to 31,076,764.09, 42,894,205.37 and 18,357,616.51

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Solution

The fourth proportional to 31,076,764.09, 42,894,205.37 and 18,357,616.51 is: 25,338,396.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,076,764.09 : 42,894,205.37 = 18,357,616.51 : x
  2. Step 2: Convert to fraction form
    31,076,764.09/42,894,205.37 = 18,357,616.51/x
  3. Step 3: Cross multiply
    31,076,764.09x = 42,894,205.37 × 18,357,616.51
  4. Step 4: Simplify right side
    31,076,764.09x = 787,435,372,683,642.62
  5. Step 5: Solve for x
    x = 787,435,372,683,642.62/31,076,764.09
  6. Step 6: Final answer
    x = 25,338,396.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.