Home / 414,528,800.40-621,793,200.60-127,277,139.60

Finding the Fourth Proportional to 414,528,800.40, 621,793,200.60 and 127,277,139.60

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Solution

The fourth proportional to 414,528,800.40, 621,793,200.60 and 127,277,139.60 is: 190,915,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,528,800.40 : 621,793,200.60 = 127,277,139.60 : x
  2. Step 2: Convert to fraction form
    414,528,800.40/621,793,200.60 = 127,277,139.60/x
  3. Step 3: Cross multiply
    414,528,800.40x = 621,793,200.60 × 127,277,139.60
  4. Step 4: Simplify right side
    414,528,800.40x = 79,140,059,995,097,008
  5. Step 5: Solve for x
    x = 79,140,059,995,097,008/414,528,800.40
  6. Step 6: Final answer
    x = 190,915,709.40

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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.