Home / 1,456,552,646.40-2,184,828,969.60-1,288,192,137.60

Finding the Fourth Proportional to 1,456,552,646.40, 2,184,828,969.60 and 1,288,192,137.60

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Solution

The fourth proportional to 1,456,552,646.40, 2,184,828,969.60 and 1,288,192,137.60 is: 1,932,288,206.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456,552,646.40 : 2,184,828,969.60 = 1,288,192,137.60 : x
  2. Step 2: Convert to fraction form
    1,456,552,646.40/2,184,828,969.60 = 1,288,192,137.60/x
  3. Step 3: Cross multiply
    1,456,552,646.40x = 2,184,828,969.60 × 1,288,192,137.60
  4. Step 4: Simplify right side
    1,456,552,646.40x = 2,814,479,500,639,429,120
  5. Step 5: Solve for x
    x = 2,814,479,500,639,429,120/1,456,552,646.40
  6. Step 6: Final answer
    x = 1,932,288,206.40

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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.