Home / 198,145,218.10-297,217,827.15-68,709,810.10

Finding the Fourth Proportional to 198,145,218.10, 297,217,827.15 and 68,709,810.10

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Solution

The fourth proportional to 198,145,218.10, 297,217,827.15 and 68,709,810.10 is: 103,064,715.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,145,218.10 : 297,217,827.15 = 68,709,810.10 : x
  2. Step 2: Convert to fraction form
    198,145,218.10/297,217,827.15 = 68,709,810.10/x
  3. Step 3: Cross multiply
    198,145,218.10x = 297,217,827.15 × 68,709,810.10
  4. Step 4: Simplify right side
    198,145,218.10x = 20,421,780,461,811,120
  5. Step 5: Solve for x
    x = 20,421,780,461,811,120/198,145,218.10
  6. Step 6: Final answer
    x = 103,064,715.15

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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.