Home / 420,140,000.80-630,858,807.60-229,037,024.80

Finding the Fourth Proportional to 420,140,000.80, 630,858,807.60 and 229,037,024.80

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Solution

The fourth proportional to 420,140,000.80, 630,858,807.60 and 229,037,024.80 is: 343,909,230.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,140,000.80 : 630,858,807.60 = 229,037,024.80 : x
  2. Step 2: Convert to fraction form
    420,140,000.80/630,858,807.60 = 229,037,024.80/x
  3. Step 3: Cross multiply
    420,140,000.80x = 630,858,807.60 × 229,037,024.80
  4. Step 4: Simplify right side
    420,140,000.80x = 144,490,024,361,579,648
  5. Step 5: Solve for x
    x = 144,490,024,361,579,648/420,140,000.80
  6. Step 6: Final answer
    x = 343,909,230.46

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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.