Home / 281,460,556,821.68-388,412,808,972.80-152,994,361,983.48

Finding the Fourth Proportional to 281,460,556,821.68, 388,412,808,972.80 and 152,994,361,983.48

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Solution

The fourth proportional to 281,460,556,821.68, 388,412,808,972.80 and 152,994,361,983.48 is: 211,130,719,579.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,460,556,821.68 : 388,412,808,972.80 = 152,994,361,983.48 : x
  2. Step 2: Convert to fraction form
    281,460,556,821.68/388,412,808,972.80 = 152,994,361,983.48/x
  3. Step 3: Cross multiply
    281,460,556,821.68x = 388,412,808,972.80 × 152,994,361,983.48
  4. Step 4: Simplify right side
    281,460,556,821.68x = 59,424,969,895,004,833,054,720
  5. Step 5: Solve for x
    x = 59,424,969,895,004,833,054,720/281,460,556,821.68
  6. Step 6: Final answer
    x = 211,130,719,579.49

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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.