Home / 912,321,166.77-1,259,029,769.67-515,835,643.77

Finding the Fourth Proportional to 912,321,166.77, 1,259,029,769.67 and 515,835,643.77

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Solution

The fourth proportional to 912,321,166.77, 1,259,029,769.67 and 515,835,643.77 is: 711,868,205.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,321,166.77 : 1,259,029,769.67 = 515,835,643.77 : x
  2. Step 2: Convert to fraction form
    912,321,166.77/1,259,029,769.67 = 515,835,643.77/x
  3. Step 3: Cross multiply
    912,321,166.77x = 1,259,029,769.67 × 515,835,643.77
  4. Step 4: Simplify right side
    912,321,166.77x = 649,452,431,763,319,296
  5. Step 5: Solve for x
    x = 649,452,431,763,319,296/912,321,166.77
  6. Step 6: Final answer
    x = 711,868,205.43

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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.