Home / 20,401,877.40-30,602,816.10-19,232,707.20

Finding the Fourth Proportional to 20,401,877.40, 30,602,816.10 and 19,232,707.20

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Solution

The fourth proportional to 20,401,877.40, 30,602,816.10 and 19,232,707.20 is: 28,849,060.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,401,877.40 : 30,602,816.10 = 19,232,707.20 : x
  2. Step 2: Convert to fraction form
    20,401,877.40/30,602,816.10 = 19,232,707.20/x
  3. Step 3: Cross multiply
    20,401,877.40x = 30,602,816.10 × 19,232,707.20
  4. Step 4: Simplify right side
    20,401,877.40x = 588,575,001,546,745.88
  5. Step 5: Solve for x
    x = 588,575,001,546,745.88/20,401,877.40
  6. Step 6: Final answer
    x = 28,849,060.80

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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.