Home / 620,784,161.32-856,702,823.88-338,542,001.68

Finding the Fourth Proportional to 620,784,161.32, 856,702,823.88 and 338,542,001.68

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Solution

The fourth proportional to 620,784,161.32, 856,702,823.88 and 338,542,001.68 is: 467,199,240.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,784,161.32 : 856,702,823.88 = 338,542,001.68 : x
  2. Step 2: Convert to fraction form
    620,784,161.32/856,702,823.88 = 338,542,001.68/x
  3. Step 3: Cross multiply
    620,784,161.32x = 856,702,823.88 × 338,542,001.68
  4. Step 4: Simplify right side
    620,784,161.32x = 290,029,888,841,243,712
  5. Step 5: Solve for x
    x = 290,029,888,841,243,712/620,784,161.32
  6. Step 6: Final answer
    x = 467,199,240.75

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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.