Home / 141,076,661.38-194,686,243.88-78,352,748.08

Finding the Fourth Proportional to 141,076,661.38, 194,686,243.88 and 78,352,748.08

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Solution

The fourth proportional to 141,076,661.38, 194,686,243.88 and 78,352,748.08 is: 108,127,042.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,076,661.38 : 194,686,243.88 = 78,352,748.08 : x
  2. Step 2: Convert to fraction form
    141,076,661.38/194,686,243.88 = 78,352,748.08/x
  3. Step 3: Cross multiply
    141,076,661.38x = 194,686,243.88 × 78,352,748.08
  4. Step 4: Simplify right side
    141,076,661.38x = 15,254,202,220,492,602
  5. Step 5: Solve for x
    x = 15,254,202,220,492,602/141,076,661.38
  6. Step 6: Final answer
    x = 108,127,042.93

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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.