Home / 258,979,935.40-388,469,903.10-247,035,999.40

Finding the Fourth Proportional to 258,979,935.40, 388,469,903.10 and 247,035,999.40

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Solution

The fourth proportional to 258,979,935.40, 388,469,903.10 and 247,035,999.40 is: 370,553,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,979,935.40 : 388,469,903.10 = 247,035,999.40 : x
  2. Step 2: Convert to fraction form
    258,979,935.40/388,469,903.10 = 247,035,999.40/x
  3. Step 3: Cross multiply
    258,979,935.40x = 388,469,903.10 × 247,035,999.40
  4. Step 4: Simplify right side
    258,979,935.40x = 95,966,050,749,129,664
  5. Step 5: Solve for x
    x = 95,966,050,749,129,664/258,979,935.40
  6. Step 6: Final answer
    x = 370,553,999.10

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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.