Home / 261,210,624.32-391,872,623.60-79,453,078.40

Finding the Fourth Proportional to 261,210,624.32, 391,872,623.60 and 79,453,078.40

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Solution

The fourth proportional to 261,210,624.32, 391,872,623.60 and 79,453,078.40 is: 119,196,860.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,210,624.32 : 391,872,623.60 = 79,453,078.40 : x
  2. Step 2: Convert to fraction form
    261,210,624.32/391,872,623.60 = 79,453,078.40/x
  3. Step 3: Cross multiply
    261,210,624.32x = 391,872,623.60 × 79,453,078.40
  4. Step 4: Simplify right side
    261,210,624.32x = 31,135,486,285,704,496
  5. Step 5: Solve for x
    x = 31,135,486,285,704,496/261,210,624.32
  6. Step 6: Final answer
    x = 119,196,860.26

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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.