Home / 421,879,877,627.18-582,244,141,972.47-250,602,485,813.78

Finding the Fourth Proportional to 421,879,877,627.18, 582,244,141,972.47 and 250,602,485,813.78

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Solution

The fourth proportional to 421,879,877,627.18, 582,244,141,972.47 and 250,602,485,813.78 is: 345,861,078,156.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,879,877,627.18 : 582,244,141,972.47 = 250,602,485,813.78 : x
  2. Step 2: Convert to fraction form
    421,879,877,627.18/582,244,141,972.47 = 250,602,485,813.78/x
  3. Step 3: Cross multiply
    421,879,877,627.18x = 582,244,141,972.47 × 250,602,485,813.78
  4. Step 4: Simplify right side
    421,879,877,627.18x = 145,911,829,328,812,406,996,992
  5. Step 5: Solve for x
    x = 145,911,829,328,812,406,996,992/421,879,877,627.18
  6. Step 6: Final answer
    x = 345,861,078,156.84

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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.