Home / 207,954,021.80-312,602,879.10-191,829,708.20

Finding the Fourth Proportional to 207,954,021.80, 312,602,879.10 and 191,829,708.20

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Solution

The fourth proportional to 207,954,021.80, 312,602,879.10 and 191,829,708.20 is: 288,364,315.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,954,021.80 : 312,602,879.10 = 191,829,708.20 : x
  2. Step 2: Convert to fraction form
    207,954,021.80/312,602,879.10 = 191,829,708.20/x
  3. Step 3: Cross multiply
    207,954,021.80x = 312,602,879.10 × 191,829,708.20
  4. Step 4: Simplify right side
    207,954,021.80x = 59,966,519,080,232,880
  5. Step 5: Solve for x
    x = 59,966,519,080,232,880/207,954,021.80
  6. Step 6: Final answer
    x = 288,364,315.16

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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.