Home / 289,991,307.50-400,187,982.06-157,833,251.62

Finding the Fourth Proportional to 289,991,307.50, 400,187,982.06 and 157,833,251.62

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Solution

The fourth proportional to 289,991,307.50, 400,187,982.06 and 157,833,251.62 is: 217,809,875.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,991,307.50 : 400,187,982.06 = 157,833,251.62 : x
  2. Step 2: Convert to fraction form
    289,991,307.50/400,187,982.06 = 157,833,251.62/x
  3. Step 3: Cross multiply
    289,991,307.50x = 400,187,982.06 × 157,833,251.62
  4. Step 4: Simplify right side
    289,991,307.50x = 63,162,970,467,776,032
  5. Step 5: Solve for x
    x = 63,162,970,467,776,032/289,991,307.50
  6. Step 6: Final answer
    x = 217,809,875.10

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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.