Home / 470,309,941-649,030,242.23-258,630,421.56

Finding the Fourth Proportional to 470,309,941, 649,030,242.23 and 258,630,421.56

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Solution

The fourth proportional to 470,309,941, 649,030,242.23 and 258,630,421.56 is: 356,911,369.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,309,941 : 649,030,242.23 = 258,630,421.56 : x
  2. Step 2: Convert to fraction form
    470,309,941/649,030,242.23 = 258,630,421.56/x
  3. Step 3: Cross multiply
    470,309,941x = 649,030,242.23 × 258,630,421.56
  4. Step 4: Simplify right side
    470,309,941x = 167,858,965,153,133,824
  5. Step 5: Solve for x
    x = 167,858,965,153,133,824/470,309,941
  6. Step 6: Final answer
    x = 356,911,369.55

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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.