Home / 678,742,896.40-1,018,114,344.60-269,799,046.90

Finding the Fourth Proportional to 678,742,896.40, 1,018,114,344.60 and 269,799,046.90

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Solution

The fourth proportional to 678,742,896.40, 1,018,114,344.60 and 269,799,046.90 is: 404,698,570.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,742,896.40 : 1,018,114,344.60 = 269,799,046.90 : x
  2. Step 2: Convert to fraction form
    678,742,896.40/1,018,114,344.60 = 269,799,046.90/x
  3. Step 3: Cross multiply
    678,742,896.40x = 1,018,114,344.60 × 269,799,046.90
  4. Step 4: Simplify right side
    678,742,896.40x = 274,686,279,808,298,144
  5. Step 5: Solve for x
    x = 274,686,279,808,298,144/678,742,896.40
  6. Step 6: Final answer
    x = 404,698,570.35

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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.