Home / 948,500,475.21-1,308,902,542.92-525,133,005.12

Finding the Fourth Proportional to 948,500,475.21, 1,308,902,542.92 and 525,133,005.12

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Solution

The fourth proportional to 948,500,475.21, 1,308,902,542.92 and 525,133,005.12 is: 724,667,982.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,500,475.21 : 1,308,902,542.92 = 525,133,005.12 : x
  2. Step 2: Convert to fraction form
    948,500,475.21/1,308,902,542.92 = 525,133,005.12/x
  3. Step 3: Cross multiply
    948,500,475.21x = 1,308,902,542.92 × 525,133,005.12
  4. Step 4: Simplify right side
    948,500,475.21x = 687,347,925,772,789,376
  5. Step 5: Solve for x
    x = 687,347,925,772,789,376/948,500,475.21
  6. Step 6: Final answer
    x = 724,667,982.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.