Home / 147,127,939.20-203,042,854.80-81,937,843.20

Finding the Fourth Proportional to 147,127,939.20, 203,042,854.80 and 81,937,843.20

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Solution

The fourth proportional to 147,127,939.20, 203,042,854.80 and 81,937,843.20 is: 113,077,731.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,127,939.20 : 203,042,854.80 = 81,937,843.20 : x
  2. Step 2: Convert to fraction form
    147,127,939.20/203,042,854.80 = 81,937,843.20/x
  3. Step 3: Cross multiply
    147,127,939.20x = 203,042,854.80 × 81,937,843.20
  4. Step 4: Simplify right side
    147,127,939.20x = 16,636,893,599,482,768
  5. Step 5: Solve for x
    x = 16,636,893,599,482,768/147,127,939.20
  6. Step 6: Final answer
    x = 113,077,731.46

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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.