Home / 145,384,295.40-218,076,443.10-139,644,732.60

Finding the Fourth Proportional to 145,384,295.40, 218,076,443.10 and 139,644,732.60

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Solution

The fourth proportional to 145,384,295.40, 218,076,443.10 and 139,644,732.60 is: 209,467,098.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,384,295.40 : 218,076,443.10 = 139,644,732.60 : x
  2. Step 2: Convert to fraction form
    145,384,295.40/218,076,443.10 = 139,644,732.60/x
  3. Step 3: Cross multiply
    145,384,295.40x = 218,076,443.10 × 139,644,732.60
  4. Step 4: Simplify right side
    145,384,295.40x = 30,453,226,583,058,612
  5. Step 5: Solve for x
    x = 30,453,226,583,058,612/145,384,295.40
  6. Step 6: Final answer
    x = 209,467,098.90

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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.