Home / 15,243,653,192.09-21,036,809,126.93-9,140,999,321.34

Finding the Fourth Proportional to 15,243,653,192.09, 21,036,809,126.93 and 9,140,999,321.34

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Solution

The fourth proportional to 15,243,653,192.09, 21,036,809,126.93 and 9,140,999,321.34 is: 12,614,919,503.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,243,653,192.09 : 21,036,809,126.93 = 9,140,999,321.34 : x
  2. Step 2: Convert to fraction form
    15,243,653,192.09/21,036,809,126.93 = 9,140,999,321.34/x
  3. Step 3: Cross multiply
    15,243,653,192.09x = 21,036,809,126.93 × 9,140,999,321.34
  4. Step 4: Simplify right side
    15,243,653,192.09x = 192,297,457,952,380,551,168
  5. Step 5: Solve for x
    x = 192,297,457,952,380,551,168/15,243,653,192.09
  6. Step 6: Final answer
    x = 12,614,919,503.17

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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.