Home / 876,081,361.54-1,208,992,337.89-479,604,351.08

Finding the Fourth Proportional to 876,081,361.54, 1,208,992,337.89 and 479,604,351.08

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Solution

The fourth proportional to 876,081,361.54, 1,208,992,337.89 and 479,604,351.08 is: 661,854,036.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,081,361.54 : 1,208,992,337.89 = 479,604,351.08 : x
  2. Step 2: Convert to fraction form
    876,081,361.54/1,208,992,337.89 = 479,604,351.08/x
  3. Step 3: Cross multiply
    876,081,361.54x = 1,208,992,337.89 × 479,604,351.08
  4. Step 4: Simplify right side
    876,081,361.54x = 579,837,985,676,248,960
  5. Step 5: Solve for x
    x = 579,837,985,676,248,960/876,081,361.54
  6. Step 6: Final answer
    x = 661,854,036.77

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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.