Home / 139,571,291.20-209,356,936.80-130,613,339.20

Finding the Fourth Proportional to 139,571,291.20, 209,356,936.80 and 130,613,339.20

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Solution

The fourth proportional to 139,571,291.20, 209,356,936.80 and 130,613,339.20 is: 195,920,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,571,291.20 : 209,356,936.80 = 130,613,339.20 : x
  2. Step 2: Convert to fraction form
    139,571,291.20/209,356,936.80 = 130,613,339.20/x
  3. Step 3: Cross multiply
    139,571,291.20x = 209,356,936.80 × 130,613,339.20
  4. Step 4: Simplify right side
    139,571,291.20x = 27,344,808,600,131,364
  5. Step 5: Solve for x
    x = 27,344,808,600,131,364/139,571,291.20
  6. Step 6: Final answer
    x = 195,920,008.80

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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.