Home / 42,696,998.70-64,053,792.45-18,435,878.70

Finding the Fourth Proportional to 42,696,998.70, 64,053,792.45 and 18,435,878.70

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Solution

The fourth proportional to 42,696,998.70, 64,053,792.45 and 18,435,878.70 is: 27,657,399.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,696,998.70 : 64,053,792.45 = 18,435,878.70 : x
  2. Step 2: Convert to fraction form
    42,696,998.70/64,053,792.45 = 18,435,878.70/x
  3. Step 3: Cross multiply
    42,696,998.70x = 64,053,792.45 × 18,435,878.70
  4. Step 4: Simplify right side
    42,696,998.70x = 1,180,887,947,883,175.75
  5. Step 5: Solve for x
    x = 1,180,887,947,883,175.75/42,696,998.70
  6. Step 6: Final answer
    x = 27,657,399.44

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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.