Home / 98,128,112.72-135,417,691.15-54,076,692.02

Finding the Fourth Proportional to 98,128,112.72, 135,417,691.15 and 54,076,692.02

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Solution

The fourth proportional to 98,128,112.72, 135,417,691.15 and 54,076,692.02 is: 74,626,328.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,128,112.72 : 135,417,691.15 = 54,076,692.02 : x
  2. Step 2: Convert to fraction form
    98,128,112.72/135,417,691.15 = 54,076,692.02/x
  3. Step 3: Cross multiply
    98,128,112.72x = 135,417,691.15 × 54,076,692.02
  4. Step 4: Simplify right side
    98,128,112.72x = 7,322,940,777,565,750
  5. Step 5: Solve for x
    x = 7,322,940,777,565,750/98,128,112.72
  6. Step 6: Final answer
    x = 74,626,328.53

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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.