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Finding the Fourth Proportional to 8,220,838.80, 11,528,070 and 8,220,838.80

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Solution

The fourth proportional to 8,220,838.80, 11,528,070 and 8,220,838.80 is: 11,528,070

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220,838.80 : 11,528,070 = 8,220,838.80 : x
  2. Step 2: Convert to fraction form
    8,220,838.80/11,528,070 = 8,220,838.80/x
  3. Step 3: Cross multiply
    8,220,838.80x = 11,528,070 × 8,220,838.80
  4. Step 4: Simplify right side
    8,220,838.80x = 94,770,405,145,116
  5. Step 5: Solve for x
    x = 94,770,405,145,116/8,220,838.80
  6. Step 6: Final answer
    x = 11,528,070

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.