Home / 30,631,303.69-42,269,969.13-16,692,361.70

Finding the Fourth Proportional to 30,631,303.69, 42,269,969.13 and 16,692,361.70

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Solution

The fourth proportional to 30,631,303.69, 42,269,969.13 and 16,692,361.70 is: 23,034,788.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,631,303.69 : 42,269,969.13 = 16,692,361.70 : x
  2. Step 2: Convert to fraction form
    30,631,303.69/42,269,969.13 = 16,692,361.70/x
  3. Step 3: Cross multiply
    30,631,303.69x = 42,269,969.13 × 16,692,361.70
  4. Step 4: Simplify right side
    30,631,303.69x = 705,585,613,836,046.25
  5. Step 5: Solve for x
    x = 705,585,613,836,046.25/30,631,303.69
  6. Step 6: Final answer
    x = 23,034,788.89

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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.