Home / 13,182,813.76-18,192,802.68-7,381,543.60

Finding the Fourth Proportional to 13,182,813.76, 18,192,802.68 and 7,381,543.60

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Solution

The fourth proportional to 13,182,813.76, 18,192,802.68 and 7,381,543.60 is: 10,186,821.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182,813.76 : 18,192,802.68 = 7,381,543.60 : x
  2. Step 2: Convert to fraction form
    13,182,813.76/18,192,802.68 = 7,381,543.60/x
  3. Step 3: Cross multiply
    13,182,813.76x = 18,192,802.68 × 7,381,543.60
  4. Step 4: Simplify right side
    13,182,813.76x = 134,290,966,188,616.84
  5. Step 5: Solve for x
    x = 134,290,966,188,616.84/13,182,813.76
  6. Step 6: Final answer
    x = 10,186,821.16

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1.5x scale

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.