Home / 208,009,809.70-312,014,714.55-147,543,633.70

Finding the Fourth Proportional to 208,009,809.70, 312,014,714.55 and 147,543,633.70

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Solution

The fourth proportional to 208,009,809.70, 312,014,714.55 and 147,543,633.70 is: 221,315,450.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,009,809.70 : 312,014,714.55 = 147,543,633.70 : x
  2. Step 2: Convert to fraction form
    208,009,809.70/312,014,714.55 = 147,543,633.70/x
  3. Step 3: Cross multiply
    208,009,809.70x = 312,014,714.55 × 147,543,633.70
  4. Step 4: Simplify right side
    208,009,809.70x = 46,035,784,752,575,256
  5. Step 5: Solve for x
    x = 46,035,784,752,575,256/208,009,809.70
  6. Step 6: Final answer
    x = 221,315,450.55

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1.5x scale

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.