Home / 20,111,974,007.50-30,157,485,853.97-9,485,345,066.78

Finding the Fourth Proportional to 20,111,974,007.50, 30,157,485,853.97 and 9,485,345,066.78

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Solution

The fourth proportional to 20,111,974,007.50, 30,157,485,853.97 and 9,485,345,066.78 is: 14,223,077,235.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111,974,007.50 : 30,157,485,853.97 = 9,485,345,066.78 : x
  2. Step 2: Convert to fraction form
    20,111,974,007.50/30,157,485,853.97 = 9,485,345,066.78/x
  3. Step 3: Cross multiply
    20,111,974,007.50x = 30,157,485,853.97 × 9,485,345,066.78
  4. Step 4: Simplify right side
    20,111,974,007.50x = 286,054,159,671,400,628,224
  5. Step 5: Solve for x
    x = 286,054,159,671,400,628,224/20,111,974,007.50
  6. Step 6: Final answer
    x = 14,223,077,235.72

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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.