Home / 30,126,486.40-45,189,729.60-9,926,857.60

Finding the Fourth Proportional to 30,126,486.40, 45,189,729.60 and 9,926,857.60

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Solution

The fourth proportional to 30,126,486.40, 45,189,729.60 and 9,926,857.60 is: 14,890,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,126,486.40 : 45,189,729.60 = 9,926,857.60 : x
  2. Step 2: Convert to fraction form
    30,126,486.40/45,189,729.60 = 9,926,857.60/x
  3. Step 3: Cross multiply
    30,126,486.40x = 45,189,729.60 × 9,926,857.60
  4. Step 4: Simplify right side
    30,126,486.40x = 448,592,010,721,704.94
  5. Step 5: Solve for x
    x = 448,592,010,721,704.94/30,126,486.40
  6. Step 6: Final answer
    x = 14,890,286.40

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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.