Home / 354,400,013.28-489,072,036.96-195,630,178.08

Finding the Fourth Proportional to 354,400,013.28, 489,072,036.96 and 195,630,178.08

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Solution

The fourth proportional to 354,400,013.28, 489,072,036.96 and 195,630,178.08 is: 269,969,656.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,400,013.28 : 489,072,036.96 = 195,630,178.08 : x
  2. Step 2: Convert to fraction form
    354,400,013.28/489,072,036.96 = 195,630,178.08/x
  3. Step 3: Cross multiply
    354,400,013.28x = 489,072,036.96 × 195,630,178.08
  4. Step 4: Simplify right side
    354,400,013.28x = 95,677,249,684,433,152
  5. Step 5: Solve for x
    x = 95,677,249,684,433,152/354,400,013.28
  6. Step 6: Final answer
    x = 269,969,656.04

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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.