Home / 209,952,005.30-314,928,007.95-123,645,986.90

Finding the Fourth Proportional to 209,952,005.30, 314,928,007.95 and 123,645,986.90

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Solution

The fourth proportional to 209,952,005.30, 314,928,007.95 and 123,645,986.90 is: 185,468,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,005.30 : 314,928,007.95 = 123,645,986.90 : x
  2. Step 2: Convert to fraction form
    209,952,005.30/314,928,007.95 = 123,645,986.90/x
  3. Step 3: Cross multiply
    209,952,005.30x = 314,928,007.95 × 123,645,986.90
  4. Step 4: Simplify right side
    209,952,005.30x = 38,939,584,345,428,800
  5. Step 5: Solve for x
    x = 38,939,584,345,428,800/209,952,005.30
  6. Step 6: Final answer
    x = 185,468,980.35

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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.