Home / 39,243,770.16-54,155,873.84-21,840,110.76

Finding the Fourth Proportional to 39,243,770.16, 54,155,873.84 and 21,840,110.76

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Solution

The fourth proportional to 39,243,770.16, 54,155,873.84 and 21,840,110.76 is: 30,139,058.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,243,770.16 : 54,155,873.84 = 21,840,110.76 : x
  2. Step 2: Convert to fraction form
    39,243,770.16/54,155,873.84 = 21,840,110.76/x
  3. Step 3: Cross multiply
    39,243,770.16x = 54,155,873.84 × 21,840,110.76
  4. Step 4: Simplify right side
    39,243,770.16x = 1,182,770,283,064,070.50
  5. Step 5: Solve for x
    x = 1,182,770,283,064,070.50/39,243,770.16
  6. Step 6: Final answer
    x = 30,139,058.46

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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.