Home / 136,743,248.40-205,065,106.20-68,563,280.40

Finding the Fourth Proportional to 136,743,248.40, 205,065,106.20 and 68,563,280.40

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Solution

The fourth proportional to 136,743,248.40, 205,065,106.20 and 68,563,280.40 is: 102,819,967.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,743,248.40 : 205,065,106.20 = 68,563,280.40 : x
  2. Step 2: Convert to fraction form
    136,743,248.40/205,065,106.20 = 68,563,280.40/x
  3. Step 3: Cross multiply
    136,743,248.40x = 205,065,106.20 × 68,563,280.40
  4. Step 4: Simplify right side
    136,743,248.40x = 14,059,936,376,646,378
  5. Step 5: Solve for x
    x = 14,059,936,376,646,378/136,743,248.40
  6. Step 6: Final answer
    x = 102,819,967.65

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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.