Home / 256,023,106.81-383,879,144.46-100,390,464.16

Finding the Fourth Proportional to 256,023,106.81, 383,879,144.46 and 100,390,464.16

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Solution

The fourth proportional to 256,023,106.81, 383,879,144.46 and 100,390,464.16 is: 150,524,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,023,106.81 : 383,879,144.46 = 100,390,464.16 : x
  2. Step 2: Convert to fraction form
    256,023,106.81/383,879,144.46 = 100,390,464.16/x
  3. Step 3: Cross multiply
    256,023,106.81x = 383,879,144.46 × 100,390,464.16
  4. Step 4: Simplify right side
    256,023,106.81x = 38,537,805,493,683,088
  5. Step 5: Solve for x
    x = 38,537,805,493,683,088/256,023,106.81
  6. Step 6: Final answer
    x = 150,524,716.20

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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.