Home / 356,818,878.36-492,370,114.49-198,055,693.85

Finding the Fourth Proportional to 356,818,878.36, 492,370,114.49 and 198,055,693.85

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Solution

The fourth proportional to 356,818,878.36, 492,370,114.49 and 198,055,693.85 is: 273,294,689.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,818,878.36 : 492,370,114.49 = 198,055,693.85 : x
  2. Step 2: Convert to fraction form
    356,818,878.36/492,370,114.49 = 198,055,693.85/x
  3. Step 3: Cross multiply
    356,818,878.36x = 492,370,114.49 × 198,055,693.85
  4. Step 4: Simplify right side
    356,818,878.36x = 97,516,704,653,859,040
  5. Step 5: Solve for x
    x = 97,516,704,653,859,040/356,818,878.36
  6. Step 6: Final answer
    x = 273,294,689.74

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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.