Home / 208,009,488.80-312,014,233.20-105,972,816.80

Finding the Fourth Proportional to 208,009,488.80, 312,014,233.20 and 105,972,816.80

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Solution

The fourth proportional to 208,009,488.80, 312,014,233.20 and 105,972,816.80 is: 158,959,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,009,488.80 : 312,014,233.20 = 105,972,816.80 : x
  2. Step 2: Convert to fraction form
    208,009,488.80/312,014,233.20 = 105,972,816.80/x
  3. Step 3: Cross multiply
    208,009,488.80x = 312,014,233.20 × 105,972,816.80
  4. Step 4: Simplify right side
    208,009,488.80x = 33,065,027,173,896,076
  5. Step 5: Solve for x
    x = 33,065,027,173,896,076/208,009,488.80
  6. Step 6: Final answer
    x = 158,959,225.20

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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.