Home / 19,683,605.20-29,525,407.80-12,456,007.60

Finding the Fourth Proportional to 19,683,605.20, 29,525,407.80 and 12,456,007.60

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Solution

The fourth proportional to 19,683,605.20, 29,525,407.80 and 12,456,007.60 is: 18,684,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,683,605.20 : 29,525,407.80 = 12,456,007.60 : x
  2. Step 2: Convert to fraction form
    19,683,605.20/29,525,407.80 = 12,456,007.60/x
  3. Step 3: Cross multiply
    19,683,605.20x = 29,525,407.80 × 12,456,007.60
  4. Step 4: Simplify right side
    19,683,605.20x = 367,768,703,949,899.25
  5. Step 5: Solve for x
    x = 367,768,703,949,899.25/19,683,605.20
  6. Step 6: Final answer
    x = 18,684,011.40

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Similar ratio
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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.