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Finding the Fourth Proportional to 388,219,607,999.40, 582,329,411,999.10 and 388,219,607,999.40

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Solution

The fourth proportional to 388,219,607,999.40, 582,329,411,999.10 and 388,219,607,999.40 is: 582,329,411,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,219,607,999.40 : 582,329,411,999.10 = 388,219,607,999.40 : x
  2. Step 2: Convert to fraction form
    388,219,607,999.40/582,329,411,999.10 = 388,219,607,999.40/x
  3. Step 3: Cross multiply
    388,219,607,999.40x = 582,329,411,999.10 × 388,219,607,999.40
  4. Step 4: Simplify right side
    388,219,607,999.40x = 226,071,696,052,811,695,390,720
  5. Step 5: Solve for x
    x = 226,071,696,052,811,695,390,720/388,219,607,999.40
  6. Step 6: Final answer
    x = 582,329,411,999.10

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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.