Home / 831,159,215.52-1,147,013,136.30-454,848,500.61

Finding the Fourth Proportional to 831,159,215.52, 1,147,013,136.30 and 454,848,500.61

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Solution

The fourth proportional to 831,159,215.52, 1,147,013,136.30 and 454,848,500.61 is: 627,698,274.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,159,215.52 : 1,147,013,136.30 = 454,848,500.61 : x
  2. Step 2: Convert to fraction form
    831,159,215.52/1,147,013,136.30 = 454,848,500.61/x
  3. Step 3: Cross multiply
    831,159,215.52x = 1,147,013,136.30 × 454,848,500.61
  4. Step 4: Simplify right side
    831,159,215.52x = 521,717,205,226,028,544
  5. Step 5: Solve for x
    x = 521,717,205,226,028,544/831,159,215.52
  6. Step 6: Final answer
    x = 627,698,274.27

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1.5x scale

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.