Home / 72,867,457.60-100,556,847.20-39,827,687.60

Finding the Fourth Proportional to 72,867,457.60, 100,556,847.20 and 39,827,687.60

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Solution

The fourth proportional to 72,867,457.60, 100,556,847.20 and 39,827,687.60 is: 54,962,075.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,867,457.60 : 100,556,847.20 = 39,827,687.60 : x
  2. Step 2: Convert to fraction form
    72,867,457.60/100,556,847.20 = 39,827,687.60/x
  3. Step 3: Cross multiply
    72,867,457.60x = 100,556,847.20 × 39,827,687.60
  4. Step 4: Simplify right side
    72,867,457.60x = 4,004,946,696,322,535
  5. Step 5: Solve for x
    x = 4,004,946,696,322,535/72,867,457.60
  6. Step 6: Final answer
    x = 54,962,075.37

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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.