Home / 13,128,731.07-19,700,034.90-9,315,199.03

Finding the Fourth Proportional to 13,128,731.07, 19,700,034.90 and 9,315,199.03

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Solution

The fourth proportional to 13,128,731.07, 19,700,034.90 and 9,315,199.03 is: 13,977,721.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128,731.07 : 19,700,034.90 = 9,315,199.03 : x
  2. Step 2: Convert to fraction form
    13,128,731.07/19,700,034.90 = 9,315,199.03/x
  3. Step 3: Cross multiply
    13,128,731.07x = 19,700,034.90 × 9,315,199.03
  4. Step 4: Simplify right side
    13,128,731.07x = 183,509,745,991,446.12
  5. Step 5: Solve for x
    x = 183,509,745,991,446.12/13,128,731.07
  6. Step 6: Final answer
    x = 13,977,721.46

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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.