Home / 20,181,434.60-30,272,151.90-8,208,007.40

Finding the Fourth Proportional to 20,181,434.60, 30,272,151.90 and 8,208,007.40

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Solution

The fourth proportional to 20,181,434.60, 30,272,151.90 and 8,208,007.40 is: 12,312,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181,434.60 : 30,272,151.90 = 8,208,007.40 : x
  2. Step 2: Convert to fraction form
    20,181,434.60/30,272,151.90 = 8,208,007.40/x
  3. Step 3: Cross multiply
    20,181,434.60x = 30,272,151.90 × 8,208,007.40
  4. Step 4: Simplify right side
    20,181,434.60x = 248,474,046,809,124.06
  5. Step 5: Solve for x
    x = 248,474,046,809,124.06/20,181,434.60
  6. Step 6: Final answer
    x = 12,312,011.10

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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.