Home / 77,726,085.60-116,589,128.40-68,768,133.60

Finding the Fourth Proportional to 77,726,085.60, 116,589,128.40 and 68,768,133.60

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Solution

The fourth proportional to 77,726,085.60, 116,589,128.40 and 68,768,133.60 is: 103,152,200.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,726,085.60 : 116,589,128.40 = 68,768,133.60 : x
  2. Step 2: Convert to fraction form
    77,726,085.60/116,589,128.40 = 68,768,133.60/x
  3. Step 3: Cross multiply
    77,726,085.60x = 116,589,128.40 × 68,768,133.60
  4. Step 4: Simplify right side
    77,726,085.60x = 8,017,616,758,118,754
  5. Step 5: Solve for x
    x = 8,017,616,758,118,754/77,726,085.60
  6. Step 6: Final answer
    x = 103,152,200.40

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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.