Home / 215,006,448,775.36-322,552,158,653.07-78,869,837,157.51

Finding the Fourth Proportional to 215,006,448,775.36, 322,552,158,653.07 and 78,869,837,157.51

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Solution

The fourth proportional to 215,006,448,775.36, 322,552,158,653.07 and 78,869,837,157.51 is: 118,320,340,495.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,006,448,775.36 : 322,552,158,653.07 = 78,869,837,157.51 : x
  2. Step 2: Convert to fraction form
    215,006,448,775.36/322,552,158,653.07 = 78,869,837,157.51/x
  3. Step 3: Cross multiply
    215,006,448,775.36x = 322,552,158,653.07 × 78,869,837,157.51
  4. Step 4: Simplify right side
    215,006,448,775.36x = 25,439,636,227,769,350,750,208
  5. Step 5: Solve for x
    x = 25,439,636,227,769,350,750,208/215,006,448,775.36
  6. Step 6: Final answer
    x = 118,320,340,495.22

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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.