Home / 5,212,239.78-7,192,886.07-2,920,416.87

Finding the Fourth Proportional to 5,212,239.78, 7,192,886.07 and 2,920,416.87

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Solution

The fourth proportional to 5,212,239.78, 7,192,886.07 and 2,920,416.87 is: 4,030,172.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212,239.78 : 7,192,886.07 = 2,920,416.87 : x
  2. Step 2: Convert to fraction form
    5,212,239.78/7,192,886.07 = 2,920,416.87/x
  3. Step 3: Cross multiply
    5,212,239.78x = 7,192,886.07 × 2,920,416.87
  4. Step 4: Simplify right side
    5,212,239.78x = 21,006,225,822,816.00
  5. Step 5: Solve for x
    x = 21,006,225,822,816.00/5,212,239.78
  6. Step 6: Final answer
    x = 4,030,172.58

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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.