Home / 660,997,825.65-991,460,857.95-200,900,122.70

Finding the Fourth Proportional to 660,997,825.65, 991,460,857.95 and 200,900,122.70

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Solution

The fourth proportional to 660,997,825.65, 991,460,857.95 and 200,900,122.70 is: 301,339,278.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,997,825.65 : 991,460,857.95 = 200,900,122.70 : x
  2. Step 2: Convert to fraction form
    660,997,825.65/991,460,857.95 = 200,900,122.70/x
  3. Step 3: Cross multiply
    660,997,825.65x = 991,460,857.95 × 200,900,122.70
  4. Step 4: Simplify right side
    660,997,825.65x = 199,184,608,009,444,960
  5. Step 5: Solve for x
    x = 199,184,608,009,444,960/660,997,825.65
  6. Step 6: Final answer
    x = 301,339,278.71

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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.