Home / 199,709,129.20-299,563,693.80-163,429,423.60

Finding the Fourth Proportional to 199,709,129.20, 299,563,693.80 and 163,429,423.60

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Solution

The fourth proportional to 199,709,129.20, 299,563,693.80 and 163,429,423.60 is: 245,144,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,709,129.20 : 299,563,693.80 = 163,429,423.60 : x
  2. Step 2: Convert to fraction form
    199,709,129.20/299,563,693.80 = 163,429,423.60/x
  3. Step 3: Cross multiply
    199,709,129.20x = 299,563,693.80 × 163,429,423.60
  4. Step 4: Simplify right side
    199,709,129.20x = 48,957,521,809,220,896
  5. Step 5: Solve for x
    x = 48,957,521,809,220,896/199,709,129.20
  6. Step 6: Final answer
    x = 245,144,135.40

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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.