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Finding the Fourth Proportional to 64,650,277.68, 96,973,054.53 and 19,210,891.20

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Solution

The fourth proportional to 64,650,277.68, 96,973,054.53 and 19,210,891.20 is: 28,815,634.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,650,277.68 : 96,973,054.53 = 19,210,891.20 : x
  2. Step 2: Convert to fraction form
    64,650,277.68/96,973,054.53 = 19,210,891.20/x
  3. Step 3: Cross multiply
    64,650,277.68x = 96,973,054.53 × 19,210,891.20
  4. Step 4: Simplify right side
    64,650,277.68x = 1,862,938,799,907,497
  5. Step 5: Solve for x
    x = 1,862,938,799,907,497/64,650,277.68
  6. Step 6: Final answer
    x = 28,815,634.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.