Home / 211,774,429.60-317,661,644.40-139,215,018.40

Finding the Fourth Proportional to 211,774,429.60, 317,661,644.40 and 139,215,018.40

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Solution

The fourth proportional to 211,774,429.60, 317,661,644.40 and 139,215,018.40 is: 208,822,527.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,774,429.60 : 317,661,644.40 = 139,215,018.40 : x
  2. Step 2: Convert to fraction form
    211,774,429.60/317,661,644.40 = 139,215,018.40/x
  3. Step 3: Cross multiply
    211,774,429.60x = 317,661,644.40 × 139,215,018.40
  4. Step 4: Simplify right side
    211,774,429.60x = 44,223,271,670,120,256
  5. Step 5: Solve for x
    x = 44,223,271,670,120,256/211,774,429.60
  6. Step 6: Final answer
    x = 208,822,527.60

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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.