Home / 766,619,272.77-1,057,932,505.37-427,528,116.53

Finding the Fourth Proportional to 766,619,272.77, 1,057,932,505.37 and 427,528,116.53

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Solution

The fourth proportional to 766,619,272.77, 1,057,932,505.37 and 427,528,116.53 is: 589,987,634.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,619,272.77 : 1,057,932,505.37 = 427,528,116.53 : x
  2. Step 2: Convert to fraction form
    766,619,272.77/1,057,932,505.37 = 427,528,116.53/x
  3. Step 3: Cross multiply
    766,619,272.77x = 1,057,932,505.37 × 427,528,116.53
  4. Step 4: Simplify right side
    766,619,272.77x = 452,295,891,436,700,160
  5. Step 5: Solve for x
    x = 452,295,891,436,700,160/766,619,272.77
  6. Step 6: Final answer
    x = 589,987,634.67

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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.