Home / 280,063,622.80-420,095,434.20-144,014,726.80

Finding the Fourth Proportional to 280,063,622.80, 420,095,434.20 and 144,014,726.80

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Solution

The fourth proportional to 280,063,622.80, 420,095,434.20 and 144,014,726.80 is: 216,022,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,063,622.80 : 420,095,434.20 = 144,014,726.80 : x
  2. Step 2: Convert to fraction form
    280,063,622.80/420,095,434.20 = 144,014,726.80/x
  3. Step 3: Cross multiply
    280,063,622.80x = 420,095,434.20 × 144,014,726.80
  4. Step 4: Simplify right side
    280,063,622.80x = 60,499,929,186,240,376
  5. Step 5: Solve for x
    x = 60,499,929,186,240,376/280,063,622.80
  6. Step 6: Final answer
    x = 216,022,090.20

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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.