Home / 198,145,220.10-297,217,830.15-68,709,812.10

Finding the Fourth Proportional to 198,145,220.10, 297,217,830.15 and 68,709,812.10

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Solution

The fourth proportional to 198,145,220.10, 297,217,830.15 and 68,709,812.10 is: 103,064,718.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,145,220.10 : 297,217,830.15 = 68,709,812.10 : x
  2. Step 2: Convert to fraction form
    198,145,220.10/297,217,830.15 = 68,709,812.10/x
  3. Step 3: Cross multiply
    198,145,220.10x = 297,217,830.15 × 68,709,812.10
  4. Step 4: Simplify right side
    198,145,220.10x = 20,421,781,262,376,212
  5. Step 5: Solve for x
    x = 20,421,781,262,376,212/198,145,220.10
  6. Step 6: Final answer
    x = 103,064,718.15

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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.