Home / 412,128,001.80-618,192,002.70-248,869,326.60

Finding the Fourth Proportional to 412,128,001.80, 618,192,002.70 and 248,869,326.60

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Solution

The fourth proportional to 412,128,001.80, 618,192,002.70 and 248,869,326.60 is: 373,303,989.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,128,001.80 : 618,192,002.70 = 248,869,326.60 : x
  2. Step 2: Convert to fraction form
    412,128,001.80/618,192,002.70 = 248,869,326.60/x
  3. Step 3: Cross multiply
    412,128,001.80x = 618,192,002.70 × 248,869,326.60
  4. Step 4: Simplify right side
    412,128,001.80x = 153,849,027,421,454,400
  5. Step 5: Solve for x
    x = 153,849,027,421,454,400/412,128,001.80
  6. Step 6: Final answer
    x = 373,303,989.90

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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.