Home / 419,920,295.40-629,880,443.10-164,618,663.40

Finding the Fourth Proportional to 419,920,295.40, 629,880,443.10 and 164,618,663.40

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Solution

The fourth proportional to 419,920,295.40, 629,880,443.10 and 164,618,663.40 is: 246,927,995.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,920,295.40 : 629,880,443.10 = 164,618,663.40 : x
  2. Step 2: Convert to fraction form
    419,920,295.40/629,880,443.10 = 164,618,663.40/x
  3. Step 3: Cross multiply
    419,920,295.40x = 629,880,443.10 × 164,618,663.40
  4. Step 4: Simplify right side
    419,920,295.40x = 103,690,076,644,921,760
  5. Step 5: Solve for x
    x = 103,690,076,644,921,760/419,920,295.40
  6. Step 6: Final answer
    x = 246,927,995.10

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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.