Home / 128,862,604.26-177,830,422.83-70,915,852.26

Finding the Fourth Proportional to 128,862,604.26, 177,830,422.83 and 70,915,852.26

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Solution

The fourth proportional to 128,862,604.26, 177,830,422.83 and 70,915,852.26 is: 97,863,892.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,862,604.26 : 177,830,422.83 = 70,915,852.26 : x
  2. Step 2: Convert to fraction form
    128,862,604.26/177,830,422.83 = 70,915,852.26/x
  3. Step 3: Cross multiply
    128,862,604.26x = 177,830,422.83 × 70,915,852.26
  4. Step 4: Simplify right side
    128,862,604.26x = 12,610,995,992,745,612
  5. Step 5: Solve for x
    x = 12,610,995,992,745,612/128,862,604.26
  6. Step 6: Final answer
    x = 97,863,892.05

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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.