Home / 112,752,021.60-169,128,032.40-64,379,080.80

Finding the Fourth Proportional to 112,752,021.60, 169,128,032.40 and 64,379,080.80

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Solution

The fourth proportional to 112,752,021.60, 169,128,032.40 and 64,379,080.80 is: 96,568,621.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,752,021.60 : 169,128,032.40 = 64,379,080.80 : x
  2. Step 2: Convert to fraction form
    112,752,021.60/169,128,032.40 = 64,379,080.80/x
  3. Step 3: Cross multiply
    112,752,021.60x = 169,128,032.40 × 64,379,080.80
  4. Step 4: Simplify right side
    112,752,021.60x = 10,888,307,263,424,618
  5. Step 5: Solve for x
    x = 10,888,307,263,424,618/112,752,021.60
  6. Step 6: Final answer
    x = 96,568,621.20

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1.5x scale

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.