Home / 205,883,709.40-308,825,564.10-69,567,124.60

Finding the Fourth Proportional to 205,883,709.40, 308,825,564.10 and 69,567,124.60

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Solution

The fourth proportional to 205,883,709.40, 308,825,564.10 and 69,567,124.60 is: 104,350,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,883,709.40 : 308,825,564.10 = 69,567,124.60 : x
  2. Step 2: Convert to fraction form
    205,883,709.40/308,825,564.10 = 69,567,124.60/x
  3. Step 3: Cross multiply
    205,883,709.40x = 308,825,564.10 × 69,567,124.60
  4. Step 4: Simplify right side
    205,883,709.40x = 21,484,106,497,409,988
  5. Step 5: Solve for x
    x = 21,484,106,497,409,988/205,883,709.40
  6. Step 6: Final answer
    x = 104,350,686.90

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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.