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Finding the Fourth Proportional to 291,384,245.80, 437,076,368.70 and 146,265,423.40

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Solution

The fourth proportional to 291,384,245.80, 437,076,368.70 and 146,265,423.40 is: 219,398,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,384,245.80 : 437,076,368.70 = 146,265,423.40 : x
  2. Step 2: Convert to fraction form
    291,384,245.80/437,076,368.70 = 146,265,423.40/x
  3. Step 3: Cross multiply
    291,384,245.80x = 437,076,368.70 × 146,265,423.40
  4. Step 4: Simplify right side
    291,384,245.80x = 63,929,160,126,040,008
  5. Step 5: Solve for x
    x = 63,929,160,126,040,008/291,384,245.80
  6. Step 6: Final answer
    x = 219,398,135.10

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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.