Home / 470,309,935.88-649,030,235.13-258,630,416.39

Finding the Fourth Proportional to 470,309,935.88, 649,030,235.13 and 258,630,416.39

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Solution

The fourth proportional to 470,309,935.88, 649,030,235.13 and 258,630,416.39 is: 356,911,362.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,309,935.88 : 649,030,235.13 = 258,630,416.39 : x
  2. Step 2: Convert to fraction form
    470,309,935.88/649,030,235.13 = 258,630,416.39/x
  3. Step 3: Cross multiply
    470,309,935.88x = 649,030,235.13 × 258,630,416.39
  4. Step 4: Simplify right side
    470,309,935.88x = 167,858,959,958,126,336
  5. Step 5: Solve for x
    x = 167,858,959,958,126,336/470,309,935.88
  6. Step 6: Final answer
    x = 356,911,362.39

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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.