Home / 71,853,526.21-107,778,742.53-20,036,749.32

Finding the Fourth Proportional to 71,853,526.21, 107,778,742.53 and 20,036,749.32

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Solution

The fourth proportional to 71,853,526.21, 107,778,742.53 and 20,036,749.32 is: 30,054,692.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,853,526.21 : 107,778,742.53 = 20,036,749.32 : x
  2. Step 2: Convert to fraction form
    71,853,526.21/107,778,742.53 = 20,036,749.32/x
  3. Step 3: Cross multiply
    71,853,526.21x = 107,778,742.53 × 20,036,749.32
  4. Step 4: Simplify right side
    71,853,526.21x = 2,159,535,645,720,220.75
  5. Step 5: Solve for x
    x = 2,159,535,645,720,220.75/71,853,526.21
  6. Step 6: Final answer
    x = 30,054,692.64

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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.