Home / 291,270,384.60-436,611,644.10-145,479,715.80

Finding the Fourth Proportional to 291,270,384.60, 436,611,644.10 and 145,479,715.80

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Solution

The fourth proportional to 291,270,384.60, 436,611,644.10 and 145,479,715.80 is: 218,072,764.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,270,384.60 : 436,611,644.10 = 145,479,715.80 : x
  2. Step 2: Convert to fraction form
    291,270,384.60/436,611,644.10 = 145,479,715.80/x
  3. Step 3: Cross multiply
    291,270,384.60x = 436,611,644.10 × 145,479,715.80
  4. Step 4: Simplify right side
    291,270,384.60x = 63,518,137,898,638,752
  5. Step 5: Solve for x
    x = 63,518,137,898,638,752/291,270,384.60
  6. Step 6: Final answer
    x = 218,072,764.20

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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.