Home / 380,304,756.36-570,669,088.86-205,424,265.96

Finding the Fourth Proportional to 380,304,756.36, 570,669,088.86 and 205,424,265.96

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Solution

The fourth proportional to 380,304,756.36, 570,669,088.86 and 205,424,265.96 is: 308,250,887.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,304,756.36 : 570,669,088.86 = 205,424,265.96 : x
  2. Step 2: Convert to fraction form
    380,304,756.36/570,669,088.86 = 205,424,265.96/x
  3. Step 3: Cross multiply
    380,304,756.36x = 570,669,088.86 × 205,424,265.96
  4. Step 4: Simplify right side
    380,304,756.36x = 117,229,278,685,127,520
  5. Step 5: Solve for x
    x = 117,229,278,685,127,520/380,304,756.36
  6. Step 6: Final answer
    x = 308,250,887.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.