Home / 72,933,071.16-100,646,453.94-39,893,031.28

Finding the Fourth Proportional to 72,933,071.16, 100,646,453.94 and 39,893,031.28

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Solution

The fourth proportional to 72,933,071.16, 100,646,453.94 and 39,893,031.28 is: 55,051,735.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,933,071.16 : 100,646,453.94 = 39,893,031.28 : x
  2. Step 2: Convert to fraction form
    72,933,071.16/100,646,453.94 = 39,893,031.28/x
  3. Step 3: Cross multiply
    72,933,071.16x = 100,646,453.94 × 39,893,031.28
  4. Step 4: Simplify right side
    72,933,071.16x = 4,015,092,135,249,499.50
  5. Step 5: Solve for x
    x = 4,015,092,135,249,499.50/72,933,071.16
  6. Step 6: Final answer
    x = 55,051,735.40

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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.