Home / 18,338,877.41-25,308,220.08-10,078,789.40

Finding the Fourth Proportional to 18,338,877.41, 25,308,220.08 and 10,078,789.40

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Solution

The fourth proportional to 18,338,877.41, 25,308,220.08 and 10,078,789.40 is: 13,909,042.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338,877.41 : 25,308,220.08 = 10,078,789.40 : x
  2. Step 2: Convert to fraction form
    18,338,877.41/25,308,220.08 = 10,078,789.40/x
  3. Step 3: Cross multiply
    18,338,877.41x = 25,308,220.08 × 10,078,789.40
  4. Step 4: Simplify right side
    18,338,877.41x = 255,076,220,275,171.16
  5. Step 5: Solve for x
    x = 255,076,220,275,171.16/18,338,877.41
  6. Step 6: Final answer
    x = 13,909,042.23

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1.5x scale

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.