Home / 136,043,381.40-204,065,072.10-74,608,801.80

Finding the Fourth Proportional to 136,043,381.40, 204,065,072.10 and 74,608,801.80

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Solution

The fourth proportional to 136,043,381.40, 204,065,072.10 and 74,608,801.80 is: 111,913,202.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,043,381.40 : 204,065,072.10 = 74,608,801.80 : x
  2. Step 2: Convert to fraction form
    136,043,381.40/204,065,072.10 = 74,608,801.80/x
  3. Step 3: Cross multiply
    136,043,381.40x = 204,065,072.10 × 74,608,801.80
  4. Step 4: Simplify right side
    136,043,381.40x = 15,225,050,518,611,608
  5. Step 5: Solve for x
    x = 15,225,050,518,611,608/136,043,381.40
  6. Step 6: Final answer
    x = 111,913,202.70

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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.