Home / 658,746,933.98-909,012,871.26-376,433,350.90

Finding the Fourth Proportional to 658,746,933.98, 909,012,871.26 and 376,433,350.90

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Solution

The fourth proportional to 658,746,933.98, 909,012,871.26 and 376,433,350.90 is: 519,444,939.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,746,933.98 : 909,012,871.26 = 376,433,350.90 : x
  2. Step 2: Convert to fraction form
    658,746,933.98/909,012,871.26 = 376,433,350.90/x
  3. Step 3: Cross multiply
    658,746,933.98x = 909,012,871.26 × 376,433,350.90
  4. Step 4: Simplify right side
    658,746,933.98x = 342,182,761,139,632,064
  5. Step 5: Solve for x
    x = 342,182,761,139,632,064/658,746,933.98
  6. Step 6: Final answer
    x = 519,444,939.31

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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.