Home / 281,460,556,817.66-388,412,808,967.28-152,994,361,979.46

Finding the Fourth Proportional to 281,460,556,817.66, 388,412,808,967.28 and 152,994,361,979.46

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Solution

The fourth proportional to 281,460,556,817.66, 388,412,808,967.28 and 152,994,361,979.46 is: 211,130,719,573.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,460,556,817.66 : 388,412,808,967.28 = 152,994,361,979.46 : x
  2. Step 2: Convert to fraction form
    281,460,556,817.66/388,412,808,967.28 = 152,994,361,979.46/x
  3. Step 3: Cross multiply
    281,460,556,817.66x = 388,412,808,967.28 × 152,994,361,979.46
  4. Step 4: Simplify right side
    281,460,556,817.66x = 59,424,969,892,598,888,005,632
  5. Step 5: Solve for x
    x = 59,424,969,892,598,888,005,632/281,460,556,817.66
  6. Step 6: Final answer
    x = 211,130,719,573.96

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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.