Home / 72,755,383.90-109,133,075.85-43,986,711.10

Finding the Fourth Proportional to 72,755,383.90, 109,133,075.85 and 43,986,711.10

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Solution

The fourth proportional to 72,755,383.90, 109,133,075.85 and 43,986,711.10 is: 65,980,066.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,755,383.90 : 109,133,075.85 = 43,986,711.10 : x
  2. Step 2: Convert to fraction form
    72,755,383.90/109,133,075.85 = 43,986,711.10/x
  3. Step 3: Cross multiply
    72,755,383.90x = 109,133,075.85 × 43,986,711.10
  4. Step 4: Simplify right side
    72,755,383.90x = 4,800,405,078,868,337
  5. Step 5: Solve for x
    x = 4,800,405,078,868,337/72,755,383.90
  6. Step 6: Final answer
    x = 65,980,066.65

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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.