Home / 12,985,210.13-17,918,042.04-7,183,206.05

Finding the Fourth Proportional to 12,985,210.13, 17,918,042.04 and 7,183,206.05

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Solution

The fourth proportional to 12,985,210.13, 17,918,042.04 and 7,183,206.05 is: 9,911,968.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,985,210.13 : 17,918,042.04 = 7,183,206.05 : x
  2. Step 2: Convert to fraction form
    12,985,210.13/17,918,042.04 = 7,183,206.05/x
  3. Step 3: Cross multiply
    12,985,210.13x = 17,918,042.04 × 7,183,206.05
  4. Step 4: Simplify right side
    12,985,210.13x = 128,708,987,896,292.12
  5. Step 5: Solve for x
    x = 128,708,987,896,292.12/12,985,210.13
  6. Step 6: Final answer
    x = 9,911,968.05

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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.