Home / 15,563,253,323.78-21,477,299,720.70-8,426,671,970.21

Finding the Fourth Proportional to 15,563,253,323.78, 21,477,299,720.70 and 8,426,671,970.21

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Solution

The fourth proportional to 15,563,253,323.78, 21,477,299,720.70 and 8,426,671,970.21 is: 11,628,812,805.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,563,253,323.78 : 21,477,299,720.70 = 8,426,671,970.21 : x
  2. Step 2: Convert to fraction form
    15,563,253,323.78/21,477,299,720.70 = 8,426,671,970.21/x
  3. Step 3: Cross multiply
    15,563,253,323.78x = 21,477,299,720.70 × 8,426,671,970.21
  4. Step 4: Simplify right side
    15,563,253,323.78x = 180,982,159,552,221,773,824
  5. Step 5: Solve for x
    x = 180,982,159,552,221,773,824/15,563,253,323.78
  6. Step 6: Final answer
    x = 11,628,812,805.85

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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.