Home / 12,422,714,980.20-18,634,072,470.30-7,179,624,362.40

Finding the Fourth Proportional to 12,422,714,980.20, 18,634,072,470.30 and 7,179,624,362.40

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Solution

The fourth proportional to 12,422,714,980.20, 18,634,072,470.30 and 7,179,624,362.40 is: 10,769,436,543.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422,714,980.20 : 18,634,072,470.30 = 7,179,624,362.40 : x
  2. Step 2: Convert to fraction form
    12,422,714,980.20/18,634,072,470.30 = 7,179,624,362.40/x
  3. Step 3: Cross multiply
    12,422,714,980.20x = 18,634,072,470.30 × 7,179,624,362.40
  4. Step 4: Simplify right side
    12,422,714,980.20x = 133,785,640,678,493,011,968
  5. Step 5: Solve for x
    x = 133,785,640,678,493,011,968/12,422,714,980.20
  6. Step 6: Final answer
    x = 10,769,436,543.60

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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.