Home / 13,038,030.08-17,992,679.04-7,158,149.12

Finding the Fourth Proportional to 13,038,030.08, 17,992,679.04 and 7,158,149.12

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Solution

The fourth proportional to 13,038,030.08, 17,992,679.04 and 7,158,149.12 is: 9,878,354.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,038,030.08 : 17,992,679.04 = 7,158,149.12 : x
  2. Step 2: Convert to fraction form
    13,038,030.08/17,992,679.04 = 7,158,149.12/x
  3. Step 3: Cross multiply
    13,038,030.08x = 17,992,679.04 × 7,158,149.12
  4. Step 4: Simplify right side
    13,038,030.08x = 128,794,279,636,618.44
  5. Step 5: Solve for x
    x = 128,794,279,636,618.44/13,038,030.08
  6. Step 6: Final answer
    x = 9,878,354.23

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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.