Home / 15,563,253,322.78-21,477,299,719.32-8,426,671,969.21

Finding the Fourth Proportional to 15,563,253,322.78, 21,477,299,719.32 and 8,426,671,969.21

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Solution

The fourth proportional to 15,563,253,322.78, 21,477,299,719.32 and 8,426,671,969.21 is: 11,628,812,804.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,563,253,322.78 : 21,477,299,719.32 = 8,426,671,969.21 : x
  2. Step 2: Convert to fraction form
    15,563,253,322.78/21,477,299,719.32 = 8,426,671,969.21/x
  3. Step 3: Cross multiply
    15,563,253,322.78x = 21,477,299,719.32 × 8,426,671,969.21
  4. Step 4: Simplify right side
    15,563,253,322.78x = 180,982,159,519,061,966,848
  5. Step 5: Solve for x
    x = 180,982,159,519,061,966,848/15,563,253,322.78
  6. Step 6: Final answer
    x = 11,628,812,804.47

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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.