Home / 308,018,780-462,023,816.16-74,851,205.84

Finding the Fourth Proportional to 308,018,780, 462,023,816.16 and 74,851,205.84

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Solution

The fourth proportional to 308,018,780, 462,023,816.16 and 74,851,205.84 is: 112,275,750.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,018,780 : 462,023,816.16 = 74,851,205.84 : x
  2. Step 2: Convert to fraction form
    308,018,780/462,023,816.16 = 74,851,205.84/x
  3. Step 3: Cross multiply
    308,018,780x = 462,023,816.16 × 74,851,205.84
  4. Step 4: Simplify right side
    308,018,780x = 34,583,039,766,374,480
  5. Step 5: Solve for x
    x = 34,583,039,766,374,480/308,018,780
  6. Step 6: Final answer
    x = 112,275,750.74

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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.