Home / 213,686,911,935.21-320,540,676,727.99-70,262,764,852.96

Finding the Fourth Proportional to 213,686,911,935.21, 320,540,676,727.99 and 70,262,764,852.96

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Solution

The fourth proportional to 213,686,911,935.21, 320,540,676,727.99 and 70,262,764,852.96 is: 105,397,536,942.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,686,911,935.21 : 320,540,676,727.99 = 70,262,764,852.96 : x
  2. Step 2: Convert to fraction form
    213,686,911,935.21/320,540,676,727.99 = 70,262,764,852.96/x
  3. Step 3: Cross multiply
    213,686,911,935.21x = 320,540,676,727.99 × 70,262,764,852.96
  4. Step 4: Simplify right side
    213,686,911,935.21x = 22,522,074,194,748,073,050,112
  5. Step 5: Solve for x
    x = 22,522,074,194,748,073,050,112/213,686,911,935.21
  6. Step 6: Final answer
    x = 105,397,536,942.16

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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.