Home / 1,980,997,899.88-2,971,562,946.78-890,484,194.92

Finding the Fourth Proportional to 1,980,997,899.88, 2,971,562,946.78 and 890,484,194.92

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Solution

The fourth proportional to 1,980,997,899.88, 2,971,562,946.78 and 890,484,194.92 is: 1,335,756,003.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,997,899.88 : 2,971,562,946.78 = 890,484,194.92 : x
  2. Step 2: Convert to fraction form
    1,980,997,899.88/2,971,562,946.78 = 890,484,194.92/x
  3. Step 3: Cross multiply
    1,980,997,899.88x = 2,971,562,946.78 × 890,484,194.92
  4. Step 4: Simplify right side
    1,980,997,899.88x = 2,646,129,838,317,491,200
  5. Step 5: Solve for x
    x = 2,646,129,838,317,491,200/1,980,997,899.88
  6. Step 6: Final answer
    x = 1,335,756,003.82

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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.