Home / 478,893,857,342.78-718,342,649,681.85-115,858,940,068.94

Finding the Fourth Proportional to 478,893,857,342.78, 718,342,649,681.85 and 115,858,940,068.94

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Solution

The fourth proportional to 478,893,857,342.78, 718,342,649,681.85 and 115,858,940,068.94 is: 173,788,860,981.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,893,857,342.78 : 718,342,649,681.85 = 115,858,940,068.94 : x
  2. Step 2: Convert to fraction form
    478,893,857,342.78/718,342,649,681.85 = 115,858,940,068.94/x
  3. Step 3: Cross multiply
    478,893,857,342.78x = 718,342,649,681.85 × 115,858,940,068.94
  4. Step 4: Simplify right side
    478,893,857,342.78x = 83,226,417,998,453,018,722,304
  5. Step 5: Solve for x
    x = 83,226,417,998,453,018,722,304/478,893,857,342.78
  6. Step 6: Final answer
    x = 173,788,860,981.11

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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.