Home / 147,622,644.20-221,433,966.30-139,730,745.35

Finding the Fourth Proportional to 147,622,644.20, 221,433,966.30 and 139,730,745.35

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Solution

The fourth proportional to 147,622,644.20, 221,433,966.30 and 139,730,745.35 is: 209,596,118.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,622,644.20 : 221,433,966.30 = 139,730,745.35 : x
  2. Step 2: Convert to fraction form
    147,622,644.20/221,433,966.30 = 139,730,745.35/x
  3. Step 3: Cross multiply
    147,622,644.20x = 221,433,966.30 × 139,730,745.35
  4. Step 4: Simplify right side
    147,622,644.20x = 30,941,133,156,905,784
  5. Step 5: Solve for x
    x = 30,941,133,156,905,784/147,622,644.20
  6. Step 6: Final answer
    x = 209,596,118.03

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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.