Home / 420,736,847.20-630,806,672.40-161,852,034.40

Finding the Fourth Proportional to 420,736,847.20, 630,806,672.40 and 161,852,034.40

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Solution

The fourth proportional to 420,736,847.20, 630,806,672.40 and 161,852,034.40 is: 242,663,184.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,736,847.20 : 630,806,672.40 = 161,852,034.40 : x
  2. Step 2: Convert to fraction form
    420,736,847.20/630,806,672.40 = 161,852,034.40/x
  3. Step 3: Cross multiply
    420,736,847.20x = 630,806,672.40 × 161,852,034.40
  4. Step 4: Simplify right side
    420,736,847.20x = 102,097,343,241,034,336
  5. Step 5: Solve for x
    x = 102,097,343,241,034,336/420,736,847.20
  6. Step 6: Final answer
    x = 242,663,184.65

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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.