Home / 387,042,979-534,102,081.28-226,121,878.06

Finding the Fourth Proportional to 387,042,979, 534,102,081.28 and 226,121,878.06

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Solution

The fourth proportional to 387,042,979, 534,102,081.28 and 226,121,878.06 is: 312,038,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,042,979 : 534,102,081.28 = 226,121,878.06 : x
  2. Step 2: Convert to fraction form
    387,042,979/534,102,081.28 = 226,121,878.06/x
  3. Step 3: Cross multiply
    387,042,979x = 534,102,081.28 × 226,121,878.06
  4. Step 4: Simplify right side
    387,042,979x = 120,772,165,694,788,368
  5. Step 5: Solve for x
    x = 120,772,165,694,788,368/387,042,979
  6. Step 6: Final answer
    x = 312,038,125.60

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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.