Home / 312,820,794.20-431,702,605.65-180,659,389.16

Finding the Fourth Proportional to 312,820,794.20, 431,702,605.65 and 180,659,389.16

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Solution

The fourth proportional to 312,820,794.20, 431,702,605.65 and 180,659,389.16 is: 249,315,680.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,820,794.20 : 431,702,605.65 = 180,659,389.16 : x
  2. Step 2: Convert to fraction form
    312,820,794.20/431,702,605.65 = 180,659,389.16/x
  3. Step 3: Cross multiply
    312,820,794.20x = 431,702,605.65 × 180,659,389.16
  4. Step 4: Simplify right side
    312,820,794.20x = 77,991,129,033,350,848
  5. Step 5: Solve for x
    x = 77,991,129,033,350,848/312,820,794.20
  6. Step 6: Final answer
    x = 249,315,680.03

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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.