Home / 459,243,250.72-688,474,715.28-213,742,450.24

Finding the Fourth Proportional to 459,243,250.72, 688,474,715.28 and 213,742,450.24

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Solution

The fourth proportional to 459,243,250.72, 688,474,715.28 and 213,742,450.24 is: 320,432,085.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,243,250.72 : 688,474,715.28 = 213,742,450.24 : x
  2. Step 2: Convert to fraction form
    459,243,250.72/688,474,715.28 = 213,742,450.24/x
  3. Step 3: Cross multiply
    459,243,250.72x = 688,474,715.28 × 213,742,450.24
  4. Step 4: Simplify right side
    459,243,250.72x = 147,156,272,572,233,568
  5. Step 5: Solve for x
    x = 147,156,272,572,233,568/459,243,250.72
  6. Step 6: Final answer
    x = 320,432,085.48

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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.