Home / 123,019,987.40-184,404,009.90-71,875,680.20

Finding the Fourth Proportional to 123,019,987.40, 184,404,009.90 and 71,875,680.20

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Solution

The fourth proportional to 123,019,987.40, 184,404,009.90 and 71,875,680.20 is: 107,739,920.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,019,987.40 : 184,404,009.90 = 71,875,680.20 : x
  2. Step 2: Convert to fraction form
    123,019,987.40/184,404,009.90 = 71,875,680.20/x
  3. Step 3: Cross multiply
    123,019,987.40x = 184,404,009.90 × 71,875,680.20
  4. Step 4: Simplify right side
    123,019,987.40x = 13,254,163,643,170,034
  5. Step 5: Solve for x
    x = 13,254,163,643,170,034/123,019,987.40
  6. Step 6: Final answer
    x = 107,739,920.34

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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.