Home / 1,215,998,683,819.10-1,678,126,564,983.60-667,309,624,238.55

Finding the Fourth Proportional to 1,215,998,683,819.10, 1,678,126,564,983.60 and 667,309,624,238.55

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Solution

The fourth proportional to 1,215,998,683,819.10, 1,678,126,564,983.60 and 667,309,624,238.55 is: 920,913,831,902.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,998,683,819.10 : 1,678,126,564,983.60 = 667,309,624,238.55 : x
  2. Step 2: Convert to fraction form
    1,215,998,683,819.10/1,678,126,564,983.60 = 667,309,624,238.55/x
  3. Step 3: Cross multiply
    1,215,998,683,819.10x = 1,678,126,564,983.60 × 667,309,624,238.55
  4. Step 4: Simplify right side
    1,215,998,683,819.10x = 1,119,830,007,503,934,871,044,096
  5. Step 5: Solve for x
    x = 1,119,830,007,503,934,871,044,096/1,215,998,683,819.10
  6. Step 6: Final answer
    x = 920,913,831,902.25

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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.