Home / 395,216,079.28-545,401,438.76-219,007,017.32

Finding the Fourth Proportional to 395,216,079.28, 545,401,438.76 and 219,007,017.32

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Solution

The fourth proportional to 395,216,079.28, 545,401,438.76 and 219,007,017.32 is: 302,231,484.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,216,079.28 : 545,401,438.76 = 219,007,017.32 : x
  2. Step 2: Convert to fraction form
    395,216,079.28/545,401,438.76 = 219,007,017.32/x
  3. Step 3: Cross multiply
    395,216,079.28x = 545,401,438.76 × 219,007,017.32
  4. Step 4: Simplify right side
    395,216,079.28x = 119,446,742,344,864,240
  5. Step 5: Solve for x
    x = 119,446,742,344,864,240/395,216,079.28
  6. Step 6: Final answer
    x = 302,231,484.51

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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.