Home / 393,462,494.10-542,980,866.90-214,847,622.74

Finding the Fourth Proportional to 393,462,494.10, 542,980,866.90 and 214,847,622.74

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Solution

The fourth proportional to 393,462,494.10, 542,980,866.90 and 214,847,622.74 is: 296,491,152.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,462,494.10 : 542,980,866.90 = 214,847,622.74 : x
  2. Step 2: Convert to fraction form
    393,462,494.10/542,980,866.90 = 214,847,622.74/x
  3. Step 3: Cross multiply
    393,462,494.10x = 542,980,866.90 × 214,847,622.74
  4. Step 4: Simplify right side
    393,462,494.10x = 116,658,148,446,769,360
  5. Step 5: Solve for x
    x = 116,658,148,446,769,360/393,462,494.10
  6. Step 6: Final answer
    x = 296,491,152.77

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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.