Home / 12,011,133,786.40-18,016,700,679.60-9,970,400,346.40

Finding the Fourth Proportional to 12,011,133,786.40, 18,016,700,679.60 and 9,970,400,346.40

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Solution

The fourth proportional to 12,011,133,786.40, 18,016,700,679.60 and 9,970,400,346.40 is: 14,955,600,519.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011,133,786.40 : 18,016,700,679.60 = 9,970,400,346.40 : x
  2. Step 2: Convert to fraction form
    12,011,133,786.40/18,016,700,679.60 = 9,970,400,346.40/x
  3. Step 3: Cross multiply
    12,011,133,786.40x = 18,016,700,679.60 × 9,970,400,346.40
  4. Step 4: Simplify right side
    12,011,133,786.40x = 179,633,718,696,868,937,728
  5. Step 5: Solve for x
    x = 179,633,718,696,868,937,728/12,011,133,786.40
  6. Step 6: Final answer
    x = 14,955,600,519.60

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1.5x scale

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.