Home / 128,007,315.86-176,650,560.99-69,269,974.29

Finding the Fourth Proportional to 128,007,315.86, 176,650,560.99 and 69,269,974.29

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Solution

The fourth proportional to 128,007,315.86, 176,650,560.99 and 69,269,974.29 is: 95,592,816.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,007,315.86 : 176,650,560.99 = 69,269,974.29 : x
  2. Step 2: Convert to fraction form
    128,007,315.86/176,650,560.99 = 69,269,974.29/x
  3. Step 3: Cross multiply
    128,007,315.86x = 176,650,560.99 × 69,269,974.29
  4. Step 4: Simplify right side
    128,007,315.86x = 12,236,579,818,091,378
  5. Step 5: Solve for x
    x = 12,236,579,818,091,378/128,007,315.86
  6. Step 6: Final answer
    x = 95,592,816.21

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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.