Home / 840,122,745.18-1,260,173,980.88-218,282,953.11

Finding the Fourth Proportional to 840,122,745.18, 1,260,173,980.88 and 218,282,953.11

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Solution

The fourth proportional to 840,122,745.18, 1,260,173,980.88 and 218,282,953.11 is: 327,421,795.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,122,745.18 : 1,260,173,980.88 = 218,282,953.11 : x
  2. Step 2: Convert to fraction form
    840,122,745.18/1,260,173,980.88 = 218,282,953.11/x
  3. Step 3: Cross multiply
    840,122,745.18x = 1,260,173,980.88 × 218,282,953.11
  4. Step 4: Simplify right side
    840,122,745.18x = 275,074,497,978,871,104
  5. Step 5: Solve for x
    x = 275,074,497,978,871,104/840,122,745.18
  6. Step 6: Final answer
    x = 327,421,795.87

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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.