Home / 118,295,590.54-163,015,372.10-90,449,851.18

Finding the Fourth Proportional to 118,295,590.54, 163,015,372.10 and 90,449,851.18

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Solution

The fourth proportional to 118,295,590.54, 163,015,372.10 and 90,449,851.18 is: 124,642,990.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,295,590.54 : 163,015,372.10 = 90,449,851.18 : x
  2. Step 2: Convert to fraction form
    118,295,590.54/163,015,372.10 = 90,449,851.18/x
  3. Step 3: Cross multiply
    118,295,590.54x = 163,015,372.10 × 90,449,851.18
  4. Step 4: Simplify right side
    118,295,590.54x = 14,744,716,146,497,324
  5. Step 5: Solve for x
    x = 14,744,716,146,497,324/118,295,590.54
  6. Step 6: Final answer
    x = 124,642,990.32

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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.