Home / 122,083,979.20-183,125,968.80-112,730,617.60

Finding the Fourth Proportional to 122,083,979.20, 183,125,968.80 and 112,730,617.60

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Solution

The fourth proportional to 122,083,979.20, 183,125,968.80 and 112,730,617.60 is: 169,095,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,083,979.20 : 183,125,968.80 = 112,730,617.60 : x
  2. Step 2: Convert to fraction form
    122,083,979.20/183,125,968.80 = 112,730,617.60/x
  3. Step 3: Cross multiply
    122,083,979.20x = 183,125,968.80 × 112,730,617.60
  4. Step 4: Simplify right side
    122,083,979.20x = 20,643,903,561,422,332
  5. Step 5: Solve for x
    x = 20,643,903,561,422,332/122,083,979.20
  6. Step 6: Final answer
    x = 169,095,926.40

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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.