Home / 525,400,107.40-788,174,810.70-161,856,555.40

Finding the Fourth Proportional to 525,400,107.40, 788,174,810.70 and 161,856,555.40

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Solution

The fourth proportional to 525,400,107.40, 788,174,810.70 and 161,856,555.40 is: 242,807,829.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,400,107.40 : 788,174,810.70 = 161,856,555.40 : x
  2. Step 2: Convert to fraction form
    525,400,107.40/788,174,810.70 = 161,856,555.40/x
  3. Step 3: Cross multiply
    525,400,107.40x = 788,174,810.70 × 161,856,555.40
  4. Step 4: Simplify right side
    525,400,107.40x = 127,571,259,912,949,072
  5. Step 5: Solve for x
    x = 127,571,259,912,949,072/525,400,107.40
  6. Step 6: Final answer
    x = 242,807,829.91

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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.