Home / 72,430,807,876.05-108,646,186,242.54-19,370,461,949.76

Finding the Fourth Proportional to 72,430,807,876.05, 108,646,186,242.54 and 19,370,461,949.76

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Solution

The fourth proportional to 72,430,807,876.05, 108,646,186,242.54 and 19,370,461,949.76 is: 29,055,686,085.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,430,807,876.05 : 108,646,186,242.54 = 19,370,461,949.76 : x
  2. Step 2: Convert to fraction form
    72,430,807,876.05/108,646,186,242.54 = 19,370,461,949.76/x
  3. Step 3: Cross multiply
    72,430,807,876.05x = 108,646,186,242.54 × 19,370,461,949.76
  4. Step 4: Simplify right side
    72,430,807,876.05x = 2,104,526,816,597,659,090,944
  5. Step 5: Solve for x
    x = 2,104,526,816,597,659,090,944/72,430,807,876.05
  6. Step 6: Final answer
    x = 29,055,686,085.94

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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.