Home / 72,933,075.81-100,646,460.38-39,893,035.94

Finding the Fourth Proportional to 72,933,075.81, 100,646,460.38 and 39,893,035.94

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Solution

The fourth proportional to 72,933,075.81, 100,646,460.38 and 39,893,035.94 is: 55,051,741.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,933,075.81 : 100,646,460.38 = 39,893,035.94 : x
  2. Step 2: Convert to fraction form
    72,933,075.81/100,646,460.38 = 39,893,035.94/x
  3. Step 3: Cross multiply
    72,933,075.81x = 100,646,460.38 × 39,893,035.94
  4. Step 4: Simplify right side
    72,933,075.81x = 4,015,092,860,470,429
  5. Step 5: Solve for x
    x = 4,015,092,860,470,429/72,933,075.81
  6. Step 6: Final answer
    x = 55,051,741.83

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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.