Home / 128,866,722.14-177,841,932.55-75,945,663.27

Finding the Fourth Proportional to 128,866,722.14, 177,841,932.55 and 75,945,663.27

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Solution

The fourth proportional to 128,866,722.14, 177,841,932.55 and 75,945,663.27 is: 104,808,466.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,866,722.14 : 177,841,932.55 = 75,945,663.27 : x
  2. Step 2: Convert to fraction form
    128,866,722.14/177,841,932.55 = 75,945,663.27/x
  3. Step 3: Cross multiply
    128,866,722.14x = 177,841,932.55 × 75,945,663.27
  4. Step 4: Simplify right side
    128,866,722.14x = 13,506,323,524,728,352
  5. Step 5: Solve for x
    x = 13,506,323,524,728,352/128,866,722.14
  6. Step 6: Final answer
    x = 104,808,466.46

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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.