Home / 118,278,845.46-163,384,566.21-89,130,509.46

Finding the Fourth Proportional to 118,278,845.46, 163,384,566.21 and 89,130,509.46

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Solution

The fourth proportional to 118,278,845.46, 163,384,566.21 and 89,130,509.46 is: 123,120,491.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,278,845.46 : 163,384,566.21 = 89,130,509.46 : x
  2. Step 2: Convert to fraction form
    118,278,845.46/163,384,566.21 = 89,130,509.46/x
  3. Step 3: Cross multiply
    118,278,845.46x = 163,384,566.21 × 89,130,509.46
  4. Step 4: Simplify right side
    118,278,845.46x = 14,562,549,624,198,402
  5. Step 5: Solve for x
    x = 14,562,549,624,198,402/118,278,845.46
  6. Step 6: Final answer
    x = 123,120,491.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.