Home / 21,070,243.52-31,580,968.08-9,686,801.60

Finding the Fourth Proportional to 21,070,243.52, 31,580,968.08 and 9,686,801.60

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Solution

The fourth proportional to 21,070,243.52, 31,580,968.08 and 9,686,801.60 is: 14,518,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,070,243.52 : 31,580,968.08 = 9,686,801.60 : x
  2. Step 2: Convert to fraction form
    21,070,243.52/31,580,968.08 = 9,686,801.60/x
  3. Step 3: Cross multiply
    21,070,243.52x = 31,580,968.08 × 9,686,801.60
  4. Step 4: Simplify right side
    21,070,243.52x = 305,918,572,126,892.88
  5. Step 5: Solve for x
    x = 305,918,572,126,892.88/21,070,243.52
  6. Step 6: Final answer
    x = 14,518,986.07

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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.