Home / 259,020,149.32-388,731,703.74-180,788,831.56

Finding the Fourth Proportional to 259,020,149.32, 388,731,703.74 and 180,788,831.56

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Solution

The fourth proportional to 259,020,149.32, 388,731,703.74 and 180,788,831.56 is: 271,323,874.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,020,149.32 : 388,731,703.74 = 180,788,831.56 : x
  2. Step 2: Convert to fraction form
    259,020,149.32/388,731,703.74 = 180,788,831.56/x
  3. Step 3: Cross multiply
    259,020,149.32x = 388,731,703.74 × 180,788,831.56
  4. Step 4: Simplify right side
    259,020,149.32x = 70,278,350,509,482,688
  5. Step 5: Solve for x
    x = 70,278,350,509,482,688/259,020,149.32
  6. Step 6: Final answer
    x = 271,323,874.59

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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.