Home / 210,369,508.40-290,338,761.06-121,059,617.15

Finding the Fourth Proportional to 210,369,508.40, 290,338,761.06 and 121,059,617.15

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Solution

The fourth proportional to 210,369,508.40, 290,338,761.06 and 121,059,617.15 is: 167,078,867.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,369,508.40 : 290,338,761.06 = 121,059,617.15 : x
  2. Step 2: Convert to fraction form
    210,369,508.40/290,338,761.06 = 121,059,617.15/x
  3. Step 3: Cross multiply
    210,369,508.40x = 290,338,761.06 × 121,059,617.15
  4. Step 4: Simplify right side
    210,369,508.40x = 35,148,299,256,277,232
  5. Step 5: Solve for x
    x = 35,148,299,256,277,232/210,369,508.40
  6. Step 6: Final answer
    x = 167,078,867.68

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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.