Home / 674,851,512.96-931,365,228.96-388,752,909.84

Finding the Fourth Proportional to 674,851,512.96, 931,365,228.96 and 388,752,909.84

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Solution

The fourth proportional to 674,851,512.96, 931,365,228.96 and 388,752,909.84 is: 536,519,420.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,851,512.96 : 931,365,228.96 = 388,752,909.84 : x
  2. Step 2: Convert to fraction form
    674,851,512.96/931,365,228.96 = 388,752,909.84/x
  3. Step 3: Cross multiply
    674,851,512.96x = 931,365,228.96 × 388,752,909.84
  4. Step 4: Simplify right side
    674,851,512.96x = 362,070,942,881,997,824
  5. Step 5: Solve for x
    x = 362,070,942,881,997,824/674,851,512.96
  6. Step 6: Final answer
    x = 536,519,420.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.