Home / 202,345,056.57-279,119,624.13-121,820,994

Finding the Fourth Proportional to 202,345,056.57, 279,119,624.13 and 121,820,994

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Solution

The fourth proportional to 202,345,056.57, 279,119,624.13 and 121,820,994 is: 168,042,800.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,345,056.57 : 279,119,624.13 = 121,820,994 : x
  2. Step 2: Convert to fraction form
    202,345,056.57/279,119,624.13 = 121,820,994/x
  3. Step 3: Cross multiply
    202,345,056.57x = 279,119,624.13 × 121,820,994
  4. Step 4: Simplify right side
    202,345,056.57x = 34,002,630,056,422,984
  5. Step 5: Solve for x
    x = 34,002,630,056,422,984/202,345,056.57
  6. Step 6: Final answer
    x = 168,042,800.91

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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.