Home / 397,190,579.35-548,128,041.76-218,595,030.83

Finding the Fourth Proportional to 397,190,579.35, 548,128,041.76 and 218,595,030.83

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Solution

The fourth proportional to 397,190,579.35, 548,128,041.76 and 218,595,030.83 is: 301,663,917.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,190,579.35 : 548,128,041.76 = 218,595,030.83 : x
  2. Step 2: Convert to fraction form
    397,190,579.35/548,128,041.76 = 218,595,030.83/x
  3. Step 3: Cross multiply
    397,190,579.35x = 548,128,041.76 × 218,595,030.83
  4. Step 4: Simplify right side
    397,190,579.35x = 119,818,066,189,988,784
  5. Step 5: Solve for x
    x = 119,818,066,189,988,784/397,190,579.35
  6. Step 6: Final answer
    x = 301,663,917.57

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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.