Home / 21,476,219,028.81-29,638,100,827.80-11,960,769,252.21

Finding the Fourth Proportional to 21,476,219,028.81, 29,638,100,827.80 and 11,960,769,252.21

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Solution

The fourth proportional to 21,476,219,028.81, 29,638,100,827.80 and 11,960,769,252.21 is: 16,506,373,146.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,476,219,028.81 : 29,638,100,827.80 = 11,960,769,252.21 : x
  2. Step 2: Convert to fraction form
    21,476,219,028.81/29,638,100,827.80 = 11,960,769,252.21/x
  3. Step 3: Cross multiply
    21,476,219,028.81x = 29,638,100,827.80 × 11,960,769,252.21
  4. Step 4: Simplify right side
    21,476,219,028.81x = 354,494,485,075,049,971,712
  5. Step 5: Solve for x
    x = 354,494,485,075,049,971,712/21,476,219,028.81
  6. Step 6: Final answer
    x = 16,506,373,146.94

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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.