Home / 409,783,102.32-565,502,384.98-221,611,396.18

Finding the Fourth Proportional to 409,783,102.32, 565,502,384.98 and 221,611,396.18

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Solution

The fourth proportional to 409,783,102.32, 565,502,384.98 and 221,611,396.18 is: 305,824,648.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,783,102.32 : 565,502,384.98 = 221,611,396.18 : x
  2. Step 2: Convert to fraction form
    409,783,102.32/565,502,384.98 = 221,611,396.18/x
  3. Step 3: Cross multiply
    409,783,102.32x = 565,502,384.98 × 221,611,396.18
  4. Step 4: Simplify right side
    409,783,102.32x = 125,321,773,079,951,424
  5. Step 5: Solve for x
    x = 125,321,773,079,951,424/409,783,102.32
  6. Step 6: Final answer
    x = 305,824,648.14

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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.