Home / 519,829,203.18-779,223,584.86-257,705,570.15

Finding the Fourth Proportional to 519,829,203.18, 779,223,584.86 and 257,705,570.15

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Solution

The fourth proportional to 519,829,203.18, 779,223,584.86 and 257,705,570.15 is: 386,300,455.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,829,203.18 : 779,223,584.86 = 257,705,570.15 : x
  2. Step 2: Convert to fraction form
    519,829,203.18/779,223,584.86 = 257,705,570.15/x
  3. Step 3: Cross multiply
    519,829,203.18x = 779,223,584.86 × 257,705,570.15
  4. Step 4: Simplify right side
    519,829,203.18x = 200,810,258,209,057,568
  5. Step 5: Solve for x
    x = 200,810,258,209,057,568/519,829,203.18
  6. Step 6: Final answer
    x = 386,300,455.96

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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.