Home / 149,120,464,254.96-205,786,232,801.44-80,531,870,770.72

Finding the Fourth Proportional to 149,120,464,254.96, 205,786,232,801.44 and 80,531,870,770.72

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Solution

The fourth proportional to 149,120,464,254.96, 205,786,232,801.44 and 80,531,870,770.72 is: 111,133,977,413.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,120,464,254.96 : 205,786,232,801.44 = 80,531,870,770.72 : x
  2. Step 2: Convert to fraction form
    149,120,464,254.96/205,786,232,801.44 = 80,531,870,770.72/x
  3. Step 3: Cross multiply
    149,120,464,254.96x = 205,786,232,801.44 × 80,531,870,770.72
  4. Step 4: Simplify right side
    149,120,464,254.96x = 16,572,350,306,358,866,739,200
  5. Step 5: Solve for x
    x = 16,572,350,306,358,866,739,200/149,120,464,254.96
  6. Step 6: Final answer
    x = 111,133,977,413.22

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1.5x scale

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.