Home / 400,015,739,483.55-552,022,129,033.17-217,112,878,836.49

Finding the Fourth Proportional to 400,015,739,483.55, 552,022,129,033.17 and 217,112,878,836.49

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Solution

The fourth proportional to 400,015,739,483.55, 552,022,129,033.17 and 217,112,878,836.49 is: 299,615,994,537.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,015,739,483.55 : 552,022,129,033.17 = 217,112,878,836.49 : x
  2. Step 2: Convert to fraction form
    400,015,739,483.55/552,022,129,033.17 = 217,112,878,836.49/x
  3. Step 3: Cross multiply
    400,015,739,483.55x = 552,022,129,033.17 × 217,112,878,836.49
  4. Step 4: Simplify right side
    400,015,739,483.55x = 119,851,113,615,839,885,000,704
  5. Step 5: Solve for x
    x = 119,851,113,615,839,885,000,704/400,015,739,483.55
  6. Step 6: Final answer
    x = 299,615,994,537.06

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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.