Home / 198,592,945.40-297,889,418.10-54,985,777.40

Finding the Fourth Proportional to 198,592,945.40, 297,889,418.10 and 54,985,777.40

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Solution

The fourth proportional to 198,592,945.40, 297,889,418.10 and 54,985,777.40 is: 82,478,666.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,592,945.40 : 297,889,418.10 = 54,985,777.40 : x
  2. Step 2: Convert to fraction form
    198,592,945.40/297,889,418.10 = 54,985,777.40/x
  3. Step 3: Cross multiply
    198,592,945.40x = 297,889,418.10 × 54,985,777.40
  4. Step 4: Simplify right side
    198,592,945.40x = 16,379,681,233,462,132
  5. Step 5: Solve for x
    x = 16,379,681,233,462,132/198,592,945.40
  6. Step 6: Final answer
    x = 82,478,666.10

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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.