Home / 55,143,201.60-82,717,912.80-16,805,966.40

Finding the Fourth Proportional to 55,143,201.60, 82,717,912.80 and 16,805,966.40

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Solution

The fourth proportional to 55,143,201.60, 82,717,912.80 and 16,805,966.40 is: 25,209,897.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,143,201.60 : 82,717,912.80 = 16,805,966.40 : x
  2. Step 2: Convert to fraction form
    55,143,201.60/82,717,912.80 = 16,805,966.40/x
  3. Step 3: Cross multiply
    55,143,201.60x = 82,717,912.80 × 16,805,966.40
  4. Step 4: Simplify right side
    55,143,201.60x = 1,390,154,463,194,929.75
  5. Step 5: Solve for x
    x = 1,390,154,463,194,929.75/55,143,201.60
  6. Step 6: Final answer
    x = 25,209,897.56

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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.