Home / 210,546,043.20-315,819,064.80-74,186,107.20

Finding the Fourth Proportional to 210,546,043.20, 315,819,064.80 and 74,186,107.20

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Solution

The fourth proportional to 210,546,043.20, 315,819,064.80 and 74,186,107.20 is: 111,279,160.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,546,043.20 : 315,819,064.80 = 74,186,107.20 : x
  2. Step 2: Convert to fraction form
    210,546,043.20/315,819,064.80 = 74,186,107.20/x
  3. Step 3: Cross multiply
    210,546,043.20x = 315,819,064.80 × 74,186,107.20
  4. Step 4: Simplify right side
    210,546,043.20x = 23,429,386,997,056,548
  5. Step 5: Solve for x
    x = 23,429,386,997,056,548/210,546,043.20
  6. Step 6: Final answer
    x = 111,279,160.80

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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.