Home / 123,019,986.40-184,404,008.40-71,875,679.20

Finding the Fourth Proportional to 123,019,986.40, 184,404,008.40 and 71,875,679.20

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Solution

The fourth proportional to 123,019,986.40, 184,404,008.40 and 71,875,679.20 is: 107,739,918.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,019,986.40 : 184,404,008.40 = 71,875,679.20 : x
  2. Step 2: Convert to fraction form
    123,019,986.40/184,404,008.40 = 71,875,679.20/x
  3. Step 3: Cross multiply
    123,019,986.40x = 184,404,008.40 × 71,875,679.20
  4. Step 4: Simplify right side
    123,019,986.40x = 13,254,163,350,952,506
  5. Step 5: Solve for x
    x = 13,254,163,350,952,506/123,019,986.40
  6. Step 6: Final answer
    x = 107,739,918.84

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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.