Home / 21,370,406,113,487-29,489,541,966,935-11,993,392,638,015

Finding the Fourth Proportional to 21,370,406,113,487, 29,489,541,966,935 and 11,993,392,638,015

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Solution

The fourth proportional to 21,370,406,113,487, 29,489,541,966,935 and 11,993,392,638,015 is: 16,549,973,530,987.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,370,406,113,487 : 29,489,541,966,935 = 11,993,392,638,015 : x
  2. Step 2: Convert to fraction form
    21,370,406,113,487/29,489,541,966,935 = 11,993,392,638,015/x
  3. Step 3: Cross multiply
    21,370,406,113,487x = 29,489,541,966,935 × 11,993,392,638,015
  4. Step 4: Simplify right side
    21,370,406,113,487x = 353,679,655,524,672,630,356,443,136
  5. Step 5: Solve for x
    x = 353,679,655,524,672,630,356,443,136/21,370,406,113,487
  6. Step 6: Final answer
    x = 16,549,973,530,987.94

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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.