Home / 10,290,521.60-14,199,989.28-5,706,828.80

Finding the Fourth Proportional to 10,290,521.60, 14,199,989.28 and 5,706,828.80

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Solution

The fourth proportional to 10,290,521.60, 14,199,989.28 and 5,706,828.80 is: 7,874,907.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290,521.60 : 14,199,989.28 = 5,706,828.80 : x
  2. Step 2: Convert to fraction form
    10,290,521.60/14,199,989.28 = 5,706,828.80/x
  3. Step 3: Cross multiply
    10,290,521.60x = 14,199,989.28 × 5,706,828.80
  4. Step 4: Simplify right side
    10,290,521.60x = 81,036,907,782,795.25
  5. Step 5: Solve for x
    x = 81,036,907,782,795.25/10,290,521.60
  6. Step 6: Final answer
    x = 7,874,907.70

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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.