Home / 470,309,929.89-649,030,226.85-258,630,410.39

Finding the Fourth Proportional to 470,309,929.89, 649,030,226.85 and 258,630,410.39

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Solution

The fourth proportional to 470,309,929.89, 649,030,226.85 and 258,630,410.39 is: 356,911,354.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,309,929.89 : 649,030,226.85 = 258,630,410.39 : x
  2. Step 2: Convert to fraction form
    470,309,929.89/649,030,226.85 = 258,630,410.39/x
  3. Step 3: Cross multiply
    470,309,929.89x = 649,030,226.85 × 258,630,410.39
  4. Step 4: Simplify right side
    470,309,929.89x = 167,858,953,926,132,704
  5. Step 5: Solve for x
    x = 167,858,953,926,132,704/470,309,929.89
  6. Step 6: Final answer
    x = 356,911,354.10

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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.