Home / 128,952,013.80-193,428,020.70-83,035,511.40

Finding the Fourth Proportional to 128,952,013.80, 193,428,020.70 and 83,035,511.40

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Solution

The fourth proportional to 128,952,013.80, 193,428,020.70 and 83,035,511.40 is: 124,553,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,952,013.80 : 193,428,020.70 = 83,035,511.40 : x
  2. Step 2: Convert to fraction form
    128,952,013.80/193,428,020.70 = 83,035,511.40/x
  3. Step 3: Cross multiply
    128,952,013.80x = 193,428,020.70 × 83,035,511.40
  4. Step 4: Simplify right side
    128,952,013.80x = 16,061,394,617,914,286
  5. Step 5: Solve for x
    x = 16,061,394,617,914,286/128,952,013.80
  6. Step 6: Final answer
    x = 124,553,267.10

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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.