Home / 678,907,009,372.80-1,018,360,514,059.20-281,281,435,996.80

Finding the Fourth Proportional to 678,907,009,372.80, 1,018,360,514,059.20 and 281,281,435,996.80

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Solution

The fourth proportional to 678,907,009,372.80, 1,018,360,514,059.20 and 281,281,435,996.80 is: 421,922,153,995.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,907,009,372.80 : 1,018,360,514,059.20 = 281,281,435,996.80 : x
  2. Step 2: Convert to fraction form
    678,907,009,372.80/1,018,360,514,059.20 = 281,281,435,996.80/x
  3. Step 3: Cross multiply
    678,907,009,372.80x = 1,018,360,514,059.20 × 281,281,435,996.80
  4. Step 4: Simplify right side
    678,907,009,372.80x = 286,445,907,757,011,191,201,792
  5. Step 5: Solve for x
    x = 286,445,907,757,011,191,201,792/678,907,009,372.80
  6. Step 6: Final answer
    x = 421,922,153,995.20

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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.