Home / 280,063,643.80-420,095,465.70-144,014,747.80

Finding the Fourth Proportional to 280,063,643.80, 420,095,465.70 and 144,014,747.80

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Solution

The fourth proportional to 280,063,643.80, 420,095,465.70 and 144,014,747.80 is: 216,022,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,063,643.80 : 420,095,465.70 = 144,014,747.80 : x
  2. Step 2: Convert to fraction form
    280,063,643.80/420,095,465.70 = 144,014,747.80/x
  3. Step 3: Cross multiply
    280,063,643.80x = 420,095,465.70 × 144,014,747.80
  4. Step 4: Simplify right side
    280,063,643.80x = 60,499,942,544,709,056
  5. Step 5: Solve for x
    x = 60,499,942,544,709,056/280,063,643.80
  6. Step 6: Final answer
    x = 216,022,121.70

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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.