Home / 13,287,549.20-19,931,323.80-12,623,997.20

Finding the Fourth Proportional to 13,287,549.20, 19,931,323.80 and 12,623,997.20

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Solution

The fourth proportional to 13,287,549.20, 19,931,323.80 and 12,623,997.20 is: 18,935,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287,549.20 : 19,931,323.80 = 12,623,997.20 : x
  2. Step 2: Convert to fraction form
    13,287,549.20/19,931,323.80 = 12,623,997.20/x
  3. Step 3: Cross multiply
    13,287,549.20x = 19,931,323.80 × 12,623,997.20
  4. Step 4: Simplify right side
    13,287,549.20x = 251,612,975,843,493.34
  5. Step 5: Solve for x
    x = 251,612,975,843,493.34/13,287,549.20
  6. Step 6: Final answer
    x = 18,935,995.80

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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.