Home / 255,877,516.49-383,817,399.62-81,001,409.81

Finding the Fourth Proportional to 255,877,516.49, 383,817,399.62 and 81,001,409.81

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Solution

The fourth proportional to 255,877,516.49, 383,817,399.62 and 81,001,409.81 is: 121,502,470.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,877,516.49 : 383,817,399.62 = 81,001,409.81 : x
  2. Step 2: Convert to fraction form
    255,877,516.49/383,817,399.62 = 81,001,409.81/x
  3. Step 3: Cross multiply
    255,877,516.49x = 383,817,399.62 × 81,001,409.81
  4. Step 4: Simplify right side
    255,877,516.49x = 31,089,750,476,504,068
  5. Step 5: Solve for x
    x = 31,089,750,476,504,068/255,877,516.49
  6. Step 6: Final answer
    x = 121,502,470.81

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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.