Home / 55,142,985.60-82,717,588.80-16,805,750.40

Finding the Fourth Proportional to 55,142,985.60, 82,717,588.80 and 16,805,750.40

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Solution

The fourth proportional to 55,142,985.60, 82,717,588.80 and 16,805,750.40 is: 25,209,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,142,985.60 : 82,717,588.80 = 16,805,750.40 : x
  2. Step 2: Convert to fraction form
    55,142,985.60/82,717,588.80 = 16,805,750.40/x
  3. Step 3: Cross multiply
    55,142,985.60x = 82,717,588.80 × 16,805,750.40
  4. Step 4: Simplify right side
    55,142,985.60x = 1,390,131,151,062,635.25
  5. Step 5: Solve for x
    x = 1,390,131,151,062,635.25/55,142,985.60
  6. Step 6: Final answer
    x = 25,209,573.55

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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.