Home / 221,223,783.80-331,851,618.93-84,909,167.30

Finding the Fourth Proportional to 221,223,783.80, 331,851,618.93 and 84,909,167.30

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Solution

The fourth proportional to 221,223,783.80, 331,851,618.93 and 84,909,167.30 is: 127,369,870.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,223,783.80 : 331,851,618.93 = 84,909,167.30 : x
  2. Step 2: Convert to fraction form
    221,223,783.80/331,851,618.93 = 84,909,167.30/x
  3. Step 3: Cross multiply
    221,223,783.80x = 331,851,618.93 × 84,909,167.30
  4. Step 4: Simplify right side
    221,223,783.80x = 28,177,244,630,503,216
  5. Step 5: Solve for x
    x = 28,177,244,630,503,216/221,223,783.80
  6. Step 6: Final answer
    x = 127,369,870.21

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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.