Home / 20,552,920.79-30,829,369.10-19,190,897.01

Finding the Fourth Proportional to 20,552,920.79, 30,829,369.10 and 19,190,897.01

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Solution

The fourth proportional to 20,552,920.79, 30,829,369.10 and 19,190,897.01 is: 28,786,334.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552,920.79 : 30,829,369.10 = 19,190,897.01 : x
  2. Step 2: Convert to fraction form
    20,552,920.79/30,829,369.10 = 19,190,897.01/x
  3. Step 3: Cross multiply
    20,552,920.79x = 30,829,369.10 × 19,190,897.01
  4. Step 4: Simplify right side
    20,552,920.79x = 591,643,247,185,421.88
  5. Step 5: Solve for x
    x = 591,643,247,185,421.88/20,552,920.79
  6. Step 6: Final answer
    x = 28,786,334.23

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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.