Home / 163,520,512.05-245,280,768.08-127,240,806.45

Finding the Fourth Proportional to 163,520,512.05, 245,280,768.08 and 127,240,806.45

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Solution

The fourth proportional to 163,520,512.05, 245,280,768.08 and 127,240,806.45 is: 190,861,209.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,520,512.05 : 245,280,768.08 = 127,240,806.45 : x
  2. Step 2: Convert to fraction form
    163,520,512.05/245,280,768.08 = 127,240,806.45/x
  3. Step 3: Cross multiply
    163,520,512.05x = 245,280,768.08 × 127,240,806.45
  4. Step 4: Simplify right side
    163,520,512.05x = 31,209,722,736,538,412
  5. Step 5: Solve for x
    x = 31,209,722,736,538,412/163,520,512.05
  6. Step 6: Final answer
    x = 190,861,209.68

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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.