Home / 221,623,769.16-305,871,183.72-127,535,982.48

Finding the Fourth Proportional to 221,623,769.16, 305,871,183.72 and 127,535,982.48

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Solution

The fourth proportional to 221,623,769.16, 305,871,183.72 and 127,535,982.48 is: 176,017,139.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,623,769.16 : 305,871,183.72 = 127,535,982.48 : x
  2. Step 2: Convert to fraction form
    221,623,769.16/305,871,183.72 = 127,535,982.48/x
  3. Step 3: Cross multiply
    221,623,769.16x = 305,871,183.72 × 127,535,982.48
  4. Step 4: Simplify right side
    221,623,769.16x = 39,009,581,928,050,784
  5. Step 5: Solve for x
    x = 39,009,581,928,050,784/221,623,769.16
  6. Step 6: Final answer
    x = 176,017,139.66

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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.