Home / 255,431,320.40-383,109,655.80-73,659,544.40

Finding the Fourth Proportional to 255,431,320.40, 383,109,655.80 and 73,659,544.40

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Solution

The fourth proportional to 255,431,320.40, 383,109,655.80 and 73,659,544.40 is: 110,478,553.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,431,320.40 : 383,109,655.80 = 73,659,544.40 : x
  2. Step 2: Convert to fraction form
    255,431,320.40/383,109,655.80 = 73,659,544.40/x
  3. Step 3: Cross multiply
    255,431,320.40x = 383,109,655.80 × 73,659,544.40
  4. Step 4: Simplify right side
    255,431,320.40x = 28,219,682,701,468,820
  5. Step 5: Solve for x
    x = 28,219,682,701,468,820/255,431,320.40
  6. Step 6: Final answer
    x = 110,478,553.13

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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.