Home / 1,988,273,505-2,981,931,887.64-608,099,970.36

Finding the Fourth Proportional to 1,988,273,505, 2,981,931,887.64 and 608,099,970.36

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Solution

The fourth proportional to 1,988,273,505, 2,981,931,887.64 and 608,099,970.36 is: 912,003,649.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,273,505 : 2,981,931,887.64 = 608,099,970.36 : x
  2. Step 2: Convert to fraction form
    1,988,273,505/2,981,931,887.64 = 608,099,970.36/x
  3. Step 3: Cross multiply
    1,988,273,505x = 2,981,931,887.64 × 608,099,970.36
  4. Step 4: Simplify right side
    1,988,273,505x = 1,813,312,692,489,422,848
  5. Step 5: Solve for x
    x = 1,813,312,692,489,422,848/1,988,273,505
  6. Step 6: Final answer
    x = 912,003,649.36

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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.