Home / 309,303,904.69-426,854,711.21-191,867,073.07

Finding the Fourth Proportional to 309,303,904.69, 426,854,711.21 and 191,867,073.07

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Solution

The fourth proportional to 309,303,904.69, 426,854,711.21 and 191,867,073.07 is: 264,786,065.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,303,904.69 : 426,854,711.21 = 191,867,073.07 : x
  2. Step 2: Convert to fraction form
    309,303,904.69/426,854,711.21 = 191,867,073.07/x
  3. Step 3: Cross multiply
    309,303,904.69x = 426,854,711.21 × 191,867,073.07
  4. Step 4: Simplify right side
    309,303,904.69x = 81,899,364,066,002,816
  5. Step 5: Solve for x
    x = 81,899,364,066,002,816/309,303,904.69
  6. Step 6: Final answer
    x = 264,786,065.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.