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Finding the Fourth Proportional to 8,802,168.80, 13,187,506.80 and 7,447,978.40

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Solution

The fourth proportional to 8,802,168.80, 13,187,506.80 and 7,447,978.40 is: 11,158,643.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,802,168.80 : 13,187,506.80 = 7,447,978.40 : x
  2. Step 2: Convert to fraction form
    8,802,168.80/13,187,506.80 = 7,447,978.40/x
  3. Step 3: Cross multiply
    8,802,168.80x = 13,187,506.80 × 7,447,978.40
  4. Step 4: Simplify right side
    8,802,168.80x = 98,220,265,796,253.12
  5. Step 5: Solve for x
    x = 98,220,265,796,253.12/8,802,168.80
  6. Step 6: Final answer
    x = 11,158,643.74

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1.5x scale

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.