Home / 136,561,856.30-188,412,337.70-83,583,334.07

Finding the Fourth Proportional to 136,561,856.30, 188,412,337.70 and 83,583,334.07

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Solution

The fourth proportional to 136,561,856.30, 188,412,337.70 and 83,583,334.07 is: 115,318,667.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,561,856.30 : 188,412,337.70 = 83,583,334.07 : x
  2. Step 2: Convert to fraction form
    136,561,856.30/188,412,337.70 = 83,583,334.07/x
  3. Step 3: Cross multiply
    136,561,856.30x = 188,412,337.70 × 83,583,334.07
  4. Step 4: Simplify right side
    136,561,856.30x = 15,748,131,363,528,776
  5. Step 5: Solve for x
    x = 15,748,131,363,528,776/136,561,856.30
  6. Step 6: Final answer
    x = 115,318,667.97

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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.