Home / 642,447,888.18-886,583,400.03-349,092,456.18

Finding the Fourth Proportional to 642,447,888.18, 886,583,400.03 and 349,092,456.18

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Solution

The fourth proportional to 642,447,888.18, 886,583,400.03 and 349,092,456.18 is: 481,750,477.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,447,888.18 : 886,583,400.03 = 349,092,456.18 : x
  2. Step 2: Convert to fraction form
    642,447,888.18/886,583,400.03 = 349,092,456.18/x
  3. Step 3: Cross multiply
    642,447,888.18x = 886,583,400.03 × 349,092,456.18
  4. Step 4: Simplify right side
    642,447,888.18x = 309,499,576,724,888,192
  5. Step 5: Solve for x
    x = 309,499,576,724,888,192/642,447,888.18
  6. Step 6: Final answer
    x = 481,750,477.23

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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.