Home / 261,134,883.99-391,688,150.90-79,367,890.23

Finding the Fourth Proportional to 261,134,883.99, 391,688,150.90 and 79,367,890.23

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Solution

The fourth proportional to 261,134,883.99, 391,688,150.90 and 79,367,890.23 is: 119,047,527.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,134,883.99 : 391,688,150.90 = 79,367,890.23 : x
  2. Step 2: Convert to fraction form
    261,134,883.99/391,688,150.90 = 79,367,890.23/x
  3. Step 3: Cross multiply
    261,134,883.99x = 391,688,150.90 × 79,367,890.23
  4. Step 4: Simplify right side
    261,134,883.99x = 31,087,462,164,626,036
  5. Step 5: Solve for x
    x = 31,087,462,164,626,036/261,134,883.99
  6. Step 6: Final answer
    x = 119,047,527.05

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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.