Home / 136,308,386.85-204,462,580.28-81,888,828.45

Finding the Fourth Proportional to 136,308,386.85, 204,462,580.28 and 81,888,828.45

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Solution

The fourth proportional to 136,308,386.85, 204,462,580.28 and 81,888,828.45 is: 122,833,242.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,308,386.85 : 204,462,580.28 = 81,888,828.45 : x
  2. Step 2: Convert to fraction form
    136,308,386.85/204,462,580.28 = 81,888,828.45/x
  3. Step 3: Cross multiply
    136,308,386.85x = 204,462,580.28 × 81,888,828.45
  4. Step 4: Simplify right side
    136,308,386.85x = 16,743,201,160,583,830
  5. Step 5: Solve for x
    x = 16,743,201,160,583,830/136,308,386.85
  6. Step 6: Final answer
    x = 122,833,242.68

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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.