Home / 981,884,781.96-1,355,029,725.72-535,876,751.58

Finding the Fourth Proportional to 981,884,781.96, 1,355,029,725.72 and 535,876,751.58

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Solution

The fourth proportional to 981,884,781.96, 1,355,029,725.72 and 535,876,751.58 is: 739,525,595.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,884,781.96 : 1,355,029,725.72 = 535,876,751.58 : x
  2. Step 2: Convert to fraction form
    981,884,781.96/1,355,029,725.72 = 535,876,751.58/x
  3. Step 3: Cross multiply
    981,884,781.96x = 1,355,029,725.72 × 535,876,751.58
  4. Step 4: Simplify right side
    981,884,781.96x = 726,128,927,713,171,968
  5. Step 5: Solve for x
    x = 726,128,927,713,171,968/981,884,781.96
  6. Step 6: Final answer
    x = 739,525,595.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.