Home / 128,259,897.37-176,993,916.50-69,521,301.35

Finding the Fourth Proportional to 128,259,897.37, 176,993,916.50 and 69,521,301.35

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Solution

The fourth proportional to 128,259,897.37, 176,993,916.50 and 69,521,301.35 is: 95,936,825.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,259,897.37 : 176,993,916.50 = 69,521,301.35 : x
  2. Step 2: Convert to fraction form
    128,259,897.37/176,993,916.50 = 69,521,301.35/x
  3. Step 3: Cross multiply
    128,259,897.37x = 176,993,916.50 × 69,521,301.35
  4. Step 4: Simplify right side
    128,259,897.37x = 12,304,847,406,113,236
  5. Step 5: Solve for x
    x = 12,304,847,406,113,236/128,259,897.37
  6. Step 6: Final answer
    x = 95,936,825.61

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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.