Home / 831,159,213.52-1,147,013,133.54-454,848,498.62

Finding the Fourth Proportional to 831,159,213.52, 1,147,013,133.54 and 454,848,498.62

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Solution

The fourth proportional to 831,159,213.52, 1,147,013,133.54 and 454,848,498.62 is: 627,698,271.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,159,213.52 : 1,147,013,133.54 = 454,848,498.62 : x
  2. Step 2: Convert to fraction form
    831,159,213.52/1,147,013,133.54 = 454,848,498.62/x
  3. Step 3: Cross multiply
    831,159,213.52x = 1,147,013,133.54 × 454,848,498.62
  4. Step 4: Simplify right side
    831,159,213.52x = 521,717,201,685,816,384
  5. Step 5: Solve for x
    x = 521,717,201,685,816,384/831,159,213.52
  6. Step 6: Final answer
    x = 627,698,271.53

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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.