Home / 261,210,624.96-391,872,624.48-79,453,079.04

Finding the Fourth Proportional to 261,210,624.96, 391,872,624.48 and 79,453,079.04

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Solution

The fourth proportional to 261,210,624.96, 391,872,624.48 and 79,453,079.04 is: 119,196,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,210,624.96 : 391,872,624.48 = 79,453,079.04 : x
  2. Step 2: Convert to fraction form
    261,210,624.96/391,872,624.48 = 79,453,079.04/x
  3. Step 3: Cross multiply
    261,210,624.96x = 391,872,624.48 × 79,453,079.04
  4. Step 4: Simplify right side
    261,210,624.96x = 31,135,486,606,421,684
  5. Step 5: Solve for x
    x = 31,135,486,606,421,684/261,210,624.96
  6. Step 6: Final answer
    x = 119,196,861.20

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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.