Home / 72,871,656.81-109,326,625.20-26,189,853.90

Finding the Fourth Proportional to 72,871,656.81, 109,326,625.20 and 26,189,853.90

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Solution

The fourth proportional to 72,871,656.81, 109,326,625.20 and 26,189,853.90 is: 39,291,659.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,871,656.81 : 109,326,625.20 = 26,189,853.90 : x
  2. Step 2: Convert to fraction form
    72,871,656.81/109,326,625.20 = 26,189,853.90/x
  3. Step 3: Cross multiply
    72,871,656.81x = 109,326,625.20 × 26,189,853.90
  4. Step 4: Simplify right side
    72,871,656.81x = 2,863,248,341,368,058
  5. Step 5: Solve for x
    x = 2,863,248,341,368,058/72,871,656.81
  6. Step 6: Final answer
    x = 39,291,659.70

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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.