Home / 163,720,162,445.33-245,360,727,739.86-127,419,571,815.96

Finding the Fourth Proportional to 163,720,162,445.33, 245,360,727,739.86 and 127,419,571,815.96

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Solution

The fourth proportional to 163,720,162,445.33, 245,360,727,739.86 and 127,419,571,815.96 is: 190,958,513,613.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,720,162,445.33 : 245,360,727,739.86 = 127,419,571,815.96 : x
  2. Step 2: Convert to fraction form
    163,720,162,445.33/245,360,727,739.86 = 127,419,571,815.96/x
  3. Step 3: Cross multiply
    163,720,162,445.33x = 245,360,727,739.86 × 127,419,571,815.96
  4. Step 4: Simplify right side
    163,720,162,445.33x = 31,263,758,869,065,298,345,984
  5. Step 5: Solve for x
    x = 31,263,758,869,065,298,345,984/163,720,162,445.33
  6. Step 6: Final answer
    x = 190,958,513,613.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.