Home / 155,871,250.48-215,105,835.36-100,962,678.88

Finding the Fourth Proportional to 155,871,250.48, 215,105,835.36 and 100,962,678.88

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Solution

The fourth proportional to 155,871,250.48, 215,105,835.36 and 100,962,678.88 is: 139,330,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,871,250.48 : 215,105,835.36 = 100,962,678.88 : x
  2. Step 2: Convert to fraction form
    155,871,250.48/215,105,835.36 = 100,962,678.88/x
  3. Step 3: Cross multiply
    155,871,250.48x = 215,105,835.36 × 100,962,678.88
  4. Step 4: Simplify right side
    155,871,250.48x = 21,717,661,380,665,828
  5. Step 5: Solve for x
    x = 21,717,661,380,665,828/155,871,250.48
  6. Step 6: Final answer
    x = 139,330,770.20

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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.