Home / 1,992,820,032.20-2,989,230,048.30-887,422,752.20

Finding the Fourth Proportional to 1,992,820,032.20, 2,989,230,048.30 and 887,422,752.20

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Solution

The fourth proportional to 1,992,820,032.20, 2,989,230,048.30 and 887,422,752.20 is: 1,331,134,128.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,820,032.20 : 2,989,230,048.30 = 887,422,752.20 : x
  2. Step 2: Convert to fraction form
    1,992,820,032.20/2,989,230,048.30 = 887,422,752.20/x
  3. Step 3: Cross multiply
    1,992,820,032.20x = 2,989,230,048.30 × 887,422,752.20
  4. Step 4: Simplify right side
    1,992,820,032.20x = 2,652,710,756,421,325,312
  5. Step 5: Solve for x
    x = 2,652,710,756,421,325,312/1,992,820,032.20
  6. Step 6: Final answer
    x = 1,331,134,128.30

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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.