Home / 141,768,986.40-212,653,479.60-83,416,764.60

Finding the Fourth Proportional to 141,768,986.40, 212,653,479.60 and 83,416,764.60

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Solution

The fourth proportional to 141,768,986.40, 212,653,479.60 and 83,416,764.60 is: 125,125,146.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,768,986.40 : 212,653,479.60 = 83,416,764.60 : x
  2. Step 2: Convert to fraction form
    141,768,986.40/212,653,479.60 = 83,416,764.60/x
  3. Step 3: Cross multiply
    141,768,986.40x = 212,653,479.60 × 83,416,764.60
  4. Step 4: Simplify right side
    141,768,986.40x = 17,738,865,249,164,100
  5. Step 5: Solve for x
    x = 17,738,865,249,164,100/141,768,986.40
  6. Step 6: Final answer
    x = 125,125,146.90

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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.