Home / 315,039,402.77-472,559,104.15-85,008,118.37

Finding the Fourth Proportional to 315,039,402.77, 472,559,104.15 and 85,008,118.37

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Solution

The fourth proportional to 315,039,402.77, 472,559,104.15 and 85,008,118.37 is: 127,512,177.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,039,402.77 : 472,559,104.15 = 85,008,118.37 : x
  2. Step 2: Convert to fraction form
    315,039,402.77/472,559,104.15 = 85,008,118.37/x
  3. Step 3: Cross multiply
    315,039,402.77x = 472,559,104.15 × 85,008,118.37
  4. Step 4: Simplify right side
    315,039,402.77x = 40,171,360,259,829,040
  5. Step 5: Solve for x
    x = 40,171,360,259,829,040/315,039,402.77
  6. Step 6: Final answer
    x = 127,512,177.55

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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.