Home / 420,250,025.88-630,620,683.44-303,550,306.20

Finding the Fourth Proportional to 420,250,025.88, 630,620,683.44 and 303,550,306.20

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Solution

The fourth proportional to 420,250,025.88, 630,620,683.44 and 303,550,306.20 is: 455,502,890.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,250,025.88 : 630,620,683.44 = 303,550,306.20 : x
  2. Step 2: Convert to fraction form
    420,250,025.88/630,620,683.44 = 303,550,306.20/x
  3. Step 3: Cross multiply
    420,250,025.88x = 630,620,683.44 × 303,550,306.20
  4. Step 4: Simplify right side
    420,250,025.88x = 191,425,101,554,265,280
  5. Step 5: Solve for x
    x = 191,425,101,554,265,280/420,250,025.88
  6. Step 6: Final answer
    x = 455,502,890.58

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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.