Home / 128,259,899.23-176,993,919.06-69,521,303.21

Finding the Fourth Proportional to 128,259,899.23, 176,993,919.06 and 69,521,303.21

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Solution

The fourth proportional to 128,259,899.23, 176,993,919.06 and 69,521,303.21 is: 95,936,828.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,259,899.23 : 176,993,919.06 = 69,521,303.21 : x
  2. Step 2: Convert to fraction form
    128,259,899.23/176,993,919.06 = 69,521,303.21/x
  3. Step 3: Cross multiply
    128,259,899.23x = 176,993,919.06 × 69,521,303.21
  4. Step 4: Simplify right side
    128,259,899.23x = 12,304,847,913,296,458
  5. Step 5: Solve for x
    x = 12,304,847,913,296,458/128,259,899.23
  6. Step 6: Final answer
    x = 95,936,828.17

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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.