Home / 210,789,001.86-290,919,371.85-121,463,566.98

Finding the Fourth Proportional to 210,789,001.86, 290,919,371.85 and 121,463,566.98

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Solution

The fourth proportional to 210,789,001.86, 290,919,371.85 and 121,463,566.98 is: 167,637,325.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,789,001.86 : 290,919,371.85 = 121,463,566.98 : x
  2. Step 2: Convert to fraction form
    210,789,001.86/290,919,371.85 = 121,463,566.98/x
  3. Step 3: Cross multiply
    210,789,001.86x = 290,919,371.85 × 121,463,566.98
  4. Step 4: Simplify right side
    210,789,001.86x = 35,336,104,608,482,004
  5. Step 5: Solve for x
    x = 35,336,104,608,482,004/210,789,001.86
  6. Step 6: Final answer
    x = 167,637,325.94

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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.