Home / 13,109,317.20-18,090,461.61-7,228,948.23

Finding the Fourth Proportional to 13,109,317.20, 18,090,461.61 and 7,228,948.23

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Solution

The fourth proportional to 13,109,317.20, 18,090,461.61 and 7,228,948.23 is: 9,975,730.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109,317.20 : 18,090,461.61 = 7,228,948.23 : x
  2. Step 2: Convert to fraction form
    13,109,317.20/18,090,461.61 = 7,228,948.23/x
  3. Step 3: Cross multiply
    13,109,317.20x = 18,090,461.61 × 7,228,948.23
  4. Step 4: Simplify right side
    13,109,317.20x = 130,775,010,435,492.45
  5. Step 5: Solve for x
    x = 130,775,010,435,492.45/13,109,317.20
  6. Step 6: Final answer
    x = 9,975,730.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.