Home / 1,489,527,994.45-2,055,472,659.93-820,458,635.98

Finding the Fourth Proportional to 1,489,527,994.45, 2,055,472,659.93 and 820,458,635.98

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Solution

The fourth proportional to 1,489,527,994.45, 2,055,472,659.93 and 820,458,635.98 is: 1,132,191,070.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,527,994.45 : 2,055,472,659.93 = 820,458,635.98 : x
  2. Step 2: Convert to fraction form
    1,489,527,994.45/2,055,472,659.93 = 820,458,635.98/x
  3. Step 3: Cross multiply
    1,489,527,994.45x = 2,055,472,659.93 × 820,458,635.98
  4. Step 4: Simplify right side
    1,489,527,994.45x = 1,686,430,294,860,350,208
  5. Step 5: Solve for x
    x = 1,686,430,294,860,350,208/1,489,527,994.45
  6. Step 6: Final answer
    x = 1,132,191,070.69

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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.