Home / 209,952,609.30-314,928,913.95-73,637,992.80

Finding the Fourth Proportional to 209,952,609.30, 314,928,913.95 and 73,637,992.80

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Solution

The fourth proportional to 209,952,609.30, 314,928,913.95 and 73,637,992.80 is: 110,456,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,609.30 : 314,928,913.95 = 73,637,992.80 : x
  2. Step 2: Convert to fraction form
    209,952,609.30/314,928,913.95 = 73,637,992.80/x
  3. Step 3: Cross multiply
    209,952,609.30x = 314,928,913.95 × 73,637,992.80
  4. Step 4: Simplify right side
    209,952,609.30x = 23,190,733,097,961,916
  5. Step 5: Solve for x
    x = 23,190,733,097,961,916/209,952,609.30
  6. Step 6: Final answer
    x = 110,456,989.20

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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.