Home / 1,107,622,118.52-1,528,989,167.71-690,140,669.36

Finding the Fourth Proportional to 1,107,622,118.52, 1,528,989,167.71 and 690,140,669.36

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Solution

The fourth proportional to 1,107,622,118.52, 1,528,989,167.71 and 690,140,669.36 is: 952,687,374.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,622,118.52 : 1,528,989,167.71 = 690,140,669.36 : x
  2. Step 2: Convert to fraction form
    1,107,622,118.52/1,528,989,167.71 = 690,140,669.36/x
  3. Step 3: Cross multiply
    1,107,622,118.52x = 1,528,989,167.71 × 690,140,669.36
  4. Step 4: Simplify right side
    1,107,622,118.52x = 1,055,217,607,639,923,840
  5. Step 5: Solve for x
    x = 1,055,217,607,639,923,840/1,107,622,118.52
  6. Step 6: Final answer
    x = 952,687,374.15

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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.