Home / 209,617,721.10-314,484,912.77-91,452,821.58

Finding the Fourth Proportional to 209,617,721.10, 314,484,912.77 and 91,452,821.58

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Solution

The fourth proportional to 209,617,721.10, 314,484,912.77 and 91,452,821.58 is: 137,204,681.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,617,721.10 : 314,484,912.77 = 91,452,821.58 : x
  2. Step 2: Convert to fraction form
    209,617,721.10/314,484,912.77 = 91,452,821.58/x
  3. Step 3: Cross multiply
    209,617,721.10x = 314,484,912.77 × 91,452,821.58
  4. Step 4: Simplify right side
    209,617,721.10x = 28,760,532,616,699,408
  5. Step 5: Solve for x
    x = 28,760,532,616,699,408/209,617,721.10
  6. Step 6: Final answer
    x = 137,204,681.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.