Home / 343,872,030.30-515,808,045.45-221,428,023.90

Finding the Fourth Proportional to 343,872,030.30, 515,808,045.45 and 221,428,023.90

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Solution

The fourth proportional to 343,872,030.30, 515,808,045.45 and 221,428,023.90 is: 332,142,035.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,872,030.30 : 515,808,045.45 = 221,428,023.90 : x
  2. Step 2: Convert to fraction form
    343,872,030.30/515,808,045.45 = 221,428,023.90/x
  3. Step 3: Cross multiply
    343,872,030.30x = 515,808,045.45 × 221,428,023.90
  4. Step 4: Simplify right side
    343,872,030.30x = 114,214,356,215,714,880
  5. Step 5: Solve for x
    x = 114,214,356,215,714,880/343,872,030.30
  6. Step 6: Final answer
    x = 332,142,035.85

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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.