Home / 21,434,415,675.76-29,579,518,155.28-11,918,763,120.52

Finding the Fourth Proportional to 21,434,415,675.76, 29,579,518,155.28 and 11,918,763,120.52

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Solution

The fourth proportional to 21,434,415,675.76, 29,579,518,155.28 and 11,918,763,120.52 is: 16,447,906,742.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,434,415,675.76 : 29,579,518,155.28 = 11,918,763,120.52 : x
  2. Step 2: Convert to fraction form
    21,434,415,675.76/29,579,518,155.28 = 11,918,763,120.52/x
  3. Step 3: Cross multiply
    21,434,415,675.76x = 29,579,518,155.28 × 11,918,763,120.52
  4. Step 4: Simplify right side
    21,434,415,675.76x = 352,551,270,111,903,023,104
  5. Step 5: Solve for x
    x = 352,551,270,111,903,023,104/21,434,415,675.76
  6. Step 6: Final answer
    x = 16,447,906,742.36

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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.