Home / 72,840,934.80-109,261,402.20-56,578,840.20

Finding the Fourth Proportional to 72,840,934.80, 109,261,402.20 and 56,578,840.20

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Solution

The fourth proportional to 72,840,934.80, 109,261,402.20 and 56,578,840.20 is: 84,868,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,840,934.80 : 109,261,402.20 = 56,578,840.20 : x
  2. Step 2: Convert to fraction form
    72,840,934.80/109,261,402.20 = 56,578,840.20/x
  3. Step 3: Cross multiply
    72,840,934.80x = 109,261,402.20 × 56,578,840.20
  4. Step 4: Simplify right side
    72,840,934.80x = 6,181,883,415,101,729
  5. Step 5: Solve for x
    x = 6,181,883,415,101,729/72,840,934.80
  6. Step 6: Final answer
    x = 84,868,260.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.