Home / 442,871,726,973.45-664,243,093,205.80-128,770,098,045.45

Finding the Fourth Proportional to 442,871,726,973.45, 664,243,093,205.80 and 128,770,098,045.45

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Solution

The fourth proportional to 442,871,726,973.45, 664,243,093,205.80 and 128,770,098,045.45 is: 193,136,393,742.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,871,726,973.45 : 664,243,093,205.80 = 128,770,098,045.45 : x
  2. Step 2: Convert to fraction form
    442,871,726,973.45/664,243,093,205.80 = 128,770,098,045.45/x
  3. Step 3: Cross multiply
    442,871,726,973.45x = 664,243,093,205.80 × 128,770,098,045.45
  4. Step 4: Simplify right side
    442,871,726,973.45x = 85,534,648,238,123,855,642,624
  5. Step 5: Solve for x
    x = 85,534,648,238,123,855,642,624/442,871,726,973.45
  6. Step 6: Final answer
    x = 193,136,393,742.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.