Home / 641,525,999.76-885,306,242.20-348,170,567.76

Finding the Fourth Proportional to 641,525,999.76, 885,306,242.20 and 348,170,567.76

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Solution

The fourth proportional to 641,525,999.76, 885,306,242.20 and 348,170,567.76 is: 480,475,580.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,525,999.76 : 885,306,242.20 = 348,170,567.76 : x
  2. Step 2: Convert to fraction form
    641,525,999.76/885,306,242.20 = 348,170,567.76/x
  3. Step 3: Cross multiply
    641,525,999.76x = 885,306,242.20 × 348,170,567.76
  4. Step 4: Simplify right side
    641,525,999.76x = 308,237,576,988,246,080
  5. Step 5: Solve for x
    x = 308,237,576,988,246,080/641,525,999.76
  6. Step 6: Final answer
    x = 480,475,580.26

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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.