Home / 20,105,658.30-30,158,487.45-11,602,602.30

Finding the Fourth Proportional to 20,105,658.30, 30,158,487.45 and 11,602,602.30

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Solution

The fourth proportional to 20,105,658.30, 30,158,487.45 and 11,602,602.30 is: 17,403,903.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,105,658.30 : 30,158,487.45 = 11,602,602.30 : x
  2. Step 2: Convert to fraction form
    20,105,658.30/30,158,487.45 = 11,602,602.30/x
  3. Step 3: Cross multiply
    20,105,658.30x = 30,158,487.45 × 11,602,602.30
  4. Step 4: Simplify right side
    20,105,658.30x = 349,916,935,851,891.12
  5. Step 5: Solve for x
    x = 349,916,935,851,891.12/20,105,658.30
  6. Step 6: Final answer
    x = 17,403,903.45

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Half scale
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Double scale
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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.