Home / 14,218,718,729.81-19,621,591,374.62-7,874,950,359.78

Finding the Fourth Proportional to 14,218,718,729.81, 19,621,591,374.62 and 7,874,950,359.78

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Solution

The fourth proportional to 14,218,718,729.81, 19,621,591,374.62 and 7,874,950,359.78 is: 10,867,298,312.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218,718,729.81 : 19,621,591,374.62 = 7,874,950,359.78 : x
  2. Step 2: Convert to fraction form
    14,218,718,729.81/19,621,591,374.62 = 7,874,950,359.78/x
  3. Step 3: Cross multiply
    14,218,718,729.81x = 19,621,591,374.62 × 7,874,950,359.78
  4. Step 4: Simplify right side
    14,218,718,729.81x = 154,519,058,055,043,547,136
  5. Step 5: Solve for x
    x = 154,519,058,055,043,547,136/14,218,718,729.81
  6. Step 6: Final answer
    x = 10,867,298,312.27

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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.