Home / 290,030,277.53-435,041,153.62-71,680,638.42

Finding the Fourth Proportional to 290,030,277.53, 435,041,153.62 and 71,680,638.42

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Solution

The fourth proportional to 290,030,277.53, 435,041,153.62 and 71,680,638.42 is: 107,519,904.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,030,277.53 : 435,041,153.62 = 71,680,638.42 : x
  2. Step 2: Convert to fraction form
    290,030,277.53/435,041,153.62 = 71,680,638.42/x
  3. Step 3: Cross multiply
    290,030,277.53x = 435,041,153.62 × 71,680,638.42
  4. Step 4: Simplify right side
    290,030,277.53x = 31,184,027,630,275,692
  5. Step 5: Solve for x
    x = 31,184,027,630,275,692/290,030,277.53
  6. Step 6: Final answer
    x = 107,519,904.11

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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.