Home / 202,345,061.58-279,119,631.02-121,820,999

Finding the Fourth Proportional to 202,345,061.58, 279,119,631.02 and 121,820,999

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Solution

The fourth proportional to 202,345,061.58, 279,119,631.02 and 121,820,999 is: 168,042,807.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,345,061.58 : 279,119,631.02 = 121,820,999 : x
  2. Step 2: Convert to fraction form
    202,345,061.58/279,119,631.02 = 121,820,999/x
  3. Step 3: Cross multiply
    202,345,061.58x = 279,119,631.02 × 121,820,999
  4. Step 4: Simplify right side
    202,345,061.58x = 34,002,632,291,367,788
  5. Step 5: Solve for x
    x = 34,002,632,291,367,788/202,345,061.58
  6. Step 6: Final answer
    x = 168,042,807.80

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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.