Home / 210,636,545.88-290,702,986-122,534,256.90

Finding the Fourth Proportional to 210,636,545.88, 290,702,986 and 122,534,256.90

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Solution

The fourth proportional to 210,636,545.88, 290,702,986 and 122,534,256.90 is: 169,111,557.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,636,545.88 : 290,702,986 = 122,534,256.90 : x
  2. Step 2: Convert to fraction form
    210,636,545.88/290,702,986 = 122,534,256.90/x
  3. Step 3: Cross multiply
    210,636,545.88x = 290,702,986 × 122,534,256.90
  4. Step 4: Simplify right side
    210,636,545.88x = 35,621,074,368,121,104
  5. Step 5: Solve for x
    x = 35,621,074,368,121,104/210,636,545.88
  6. Step 6: Final answer
    x = 169,111,557.63

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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.