Home / 200,082,209.40-300,123,314.10-166,069,985.40

Finding the Fourth Proportional to 200,082,209.40, 300,123,314.10 and 166,069,985.40

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Solution

The fourth proportional to 200,082,209.40, 300,123,314.10 and 166,069,985.40 is: 249,104,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,082,209.40 : 300,123,314.10 = 166,069,985.40 : x
  2. Step 2: Convert to fraction form
    200,082,209.40/300,123,314.10 = 166,069,985.40/x
  3. Step 3: Cross multiply
    200,082,209.40x = 300,123,314.10 × 166,069,985.40
  4. Step 4: Simplify right side
    200,082,209.40x = 49,841,474,390,786,616
  5. Step 5: Solve for x
    x = 49,841,474,390,786,616/200,082,209.40
  6. Step 6: Final answer
    x = 249,104,978.10

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1.5x scale

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.