Home / 78,544,410,663.57-117,816,617,554.29-18,853,072,937.46

Finding the Fourth Proportional to 78,544,410,663.57, 117,816,617,554.29 and 18,853,072,937.46

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Solution

The fourth proportional to 78,544,410,663.57, 117,816,617,554.29 and 18,853,072,937.46 is: 28,279,609,780.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,544,410,663.57 : 117,816,617,554.29 = 18,853,072,937.46 : x
  2. Step 2: Convert to fraction form
    78,544,410,663.57/117,816,617,554.29 = 18,853,072,937.46/x
  3. Step 3: Cross multiply
    78,544,410,663.57x = 117,816,617,554.29 × 18,853,072,937.46
  4. Step 4: Simplify right side
    78,544,410,663.57x = 2,221,205,283,996,095,217,664
  5. Step 5: Solve for x
    x = 2,221,205,283,996,095,217,664/78,544,410,663.57
  6. Step 6: Final answer
    x = 28,279,609,780.39

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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.