Home / 25,185,980.70-37,715,985.45-20,147,132.70

Finding the Fourth Proportional to 25,185,980.70, 37,715,985.45 and 20,147,132.70

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Solution

The fourth proportional to 25,185,980.70, 37,715,985.45 and 20,147,132.70 is: 30,170,314.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,185,980.70 : 37,715,985.45 = 20,147,132.70 : x
  2. Step 2: Convert to fraction form
    25,185,980.70/37,715,985.45 = 20,147,132.70/x
  3. Step 3: Cross multiply
    25,185,980.70x = 37,715,985.45 × 20,147,132.70
  4. Step 4: Simplify right side
    25,185,980.70x = 759,868,963,772,419.25
  5. Step 5: Solve for x
    x = 759,868,963,772,419.25/25,185,980.70
  6. Step 6: Final answer
    x = 30,170,314.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.