Home / 540,012,023.19-810,012,129.84-131,068,173.69

Finding the Fourth Proportional to 540,012,023.19, 810,012,129.84 and 131,068,173.69

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Solution

The fourth proportional to 540,012,023.19, 810,012,129.84 and 131,068,173.69 is: 196,600,827.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,012,023.19 : 810,012,129.84 = 131,068,173.69 : x
  2. Step 2: Convert to fraction form
    540,012,023.19/810,012,129.84 = 131,068,173.69/x
  3. Step 3: Cross multiply
    540,012,023.19x = 810,012,129.84 × 131,068,173.69
  4. Step 4: Simplify right side
    540,012,023.19x = 106,166,810,524,875,952
  5. Step 5: Solve for x
    x = 106,166,810,524,875,952/540,012,023.19
  6. Step 6: Final answer
    x = 196,600,827.33

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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.