Home / 78,036,363,007.60-117,054,644,782.26-21,376,724,358.16

Finding the Fourth Proportional to 78,036,363,007.60, 117,054,644,782.26 and 21,376,724,358.16

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Solution

The fourth proportional to 78,036,363,007.60, 117,054,644,782.26 and 21,376,724,358.16 is: 32,065,114,004.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,036,363,007.60 : 117,054,644,782.26 = 21,376,724,358.16 : x
  2. Step 2: Convert to fraction form
    78,036,363,007.60/117,054,644,782.26 = 21,376,724,358.16/x
  3. Step 3: Cross multiply
    78,036,363,007.60x = 117,054,644,782.26 × 21,376,724,358.16
  4. Step 4: Simplify right side
    78,036,363,007.60x = 2,502,244,876,352,703,430,656
  5. Step 5: Solve for x
    x = 2,502,244,876,352,703,430,656/78,036,363,007.60
  6. Step 6: Final answer
    x = 32,065,114,004.72

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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.