Home / 210,769,665.76-290,892,563-121,444,502.06

Finding the Fourth Proportional to 210,769,665.76, 290,892,563 and 121,444,502.06

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Solution

The fourth proportional to 210,769,665.76, 290,892,563 and 121,444,502.06 is: 167,610,943.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,769,665.76 : 290,892,563 = 121,444,502.06 : x
  2. Step 2: Convert to fraction form
    210,769,665.76/290,892,563 = 121,444,502.06/x
  3. Step 3: Cross multiply
    210,769,665.76x = 290,892,563 × 121,444,502.06
  4. Step 4: Simplify right side
    210,769,665.76x = 35,327,302,466,492,180
  5. Step 5: Solve for x
    x = 35,327,302,466,492,180/210,769,665.76
  6. Step 6: Final answer
    x = 167,610,943.15

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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.