Home / 1,215,998,683,816.60-1,678,126,564,980.10-667,309,624,236.05

Finding the Fourth Proportional to 1,215,998,683,816.60, 1,678,126,564,980.10 and 667,309,624,236.05

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Solution

The fourth proportional to 1,215,998,683,816.60, 1,678,126,564,980.10 and 667,309,624,236.05 is: 920,913,831,898.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,998,683,816.60 : 1,678,126,564,980.10 = 667,309,624,236.05 : x
  2. Step 2: Convert to fraction form
    1,215,998,683,816.60/1,678,126,564,980.10 = 667,309,624,236.05/x
  3. Step 3: Cross multiply
    1,215,998,683,816.60x = 1,678,126,564,980.10 × 667,309,624,236.05
  4. Step 4: Simplify right side
    1,215,998,683,816.60x = 1,119,830,007,497,403,970,617,344
  5. Step 5: Solve for x
    x = 1,119,830,007,497,403,970,617,344/1,215,998,683,816.60
  6. Step 6: Final answer
    x = 920,913,831,898.77

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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.