Home / 525,399,992.40-788,174,638.20-161,856,440.40

Finding the Fourth Proportional to 525,399,992.40, 788,174,638.20 and 161,856,440.40

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Solution

The fourth proportional to 525,399,992.40, 788,174,638.20 and 161,856,440.40 is: 242,807,657.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,399,992.40 : 788,174,638.20 = 161,856,440.40 : x
  2. Step 2: Convert to fraction form
    525,399,992.40/788,174,638.20 = 161,856,440.40/x
  3. Step 3: Cross multiply
    525,399,992.40x = 788,174,638.20 × 161,856,440.40
  4. Step 4: Simplify right side
    525,399,992.40x = 127,571,141,352,609,872
  5. Step 5: Solve for x
    x = 127,571,141,352,609,872/525,399,992.40
  6. Step 6: Final answer
    x = 242,807,657.40

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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.