Home / 209,279,038.56-288,802,781.30-115,191,173.92

Finding the Fourth Proportional to 209,279,038.56, 288,802,781.30 and 115,191,173.92

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Solution

The fourth proportional to 209,279,038.56, 288,802,781.30 and 115,191,173.92 is: 158,962,558.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,279,038.56 : 288,802,781.30 = 115,191,173.92 : x
  2. Step 2: Convert to fraction form
    209,279,038.56/288,802,781.30 = 115,191,173.92/x
  3. Step 3: Cross multiply
    209,279,038.56x = 288,802,781.30 × 115,191,173.92
  4. Step 4: Simplify right side
    209,279,038.56x = 33,267,531,409,308,024
  5. Step 5: Solve for x
    x = 33,267,531,409,308,024/209,279,038.56
  6. Step 6: Final answer
    x = 158,962,558.50

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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.