Home / 280,063,612.80-420,095,419.20-144,014,716.80

Finding the Fourth Proportional to 280,063,612.80, 420,095,419.20 and 144,014,716.80

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Solution

The fourth proportional to 280,063,612.80, 420,095,419.20 and 144,014,716.80 is: 216,022,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,063,612.80 : 420,095,419.20 = 144,014,716.80 : x
  2. Step 2: Convert to fraction form
    280,063,612.80/420,095,419.20 = 144,014,716.80/x
  3. Step 3: Cross multiply
    280,063,612.80x = 420,095,419.20 × 144,014,716.80
  4. Step 4: Simplify right side
    280,063,612.80x = 60,499,922,825,065,288
  5. Step 5: Solve for x
    x = 60,499,922,825,065,288/280,063,612.80
  6. Step 6: Final answer
    x = 216,022,075.20

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1.5x scale

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.