Home / 120,987,525,752.49-166,984,646,337.39-72,161,479,536.86

Finding the Fourth Proportional to 120,987,525,752.49, 166,984,646,337.39 and 72,161,479,536.86

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Solution

The fourth proportional to 120,987,525,752.49, 166,984,646,337.39 and 72,161,479,536.86 is: 99,595,880,357.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,987,525,752.49 : 166,984,646,337.39 = 72,161,479,536.86 : x
  2. Step 2: Convert to fraction form
    120,987,525,752.49/166,984,646,337.39 = 72,161,479,536.86/x
  3. Step 3: Cross multiply
    120,987,525,752.49x = 166,984,646,337.39 × 72,161,479,536.86
  4. Step 4: Simplify right side
    120,987,525,752.49x = 12,049,859,139,646,041,096,192
  5. Step 5: Solve for x
    x = 12,049,859,139,646,041,096,192/120,987,525,752.49
  6. Step 6: Final answer
    x = 99,595,880,357.92

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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.