Home / 426,492,055.45-639,738,083.18-196,909,543.45

Finding the Fourth Proportional to 426,492,055.45, 639,738,083.18 and 196,909,543.45

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Solution

The fourth proportional to 426,492,055.45, 639,738,083.18 and 196,909,543.45 is: 295,364,315.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,492,055.45 : 639,738,083.18 = 196,909,543.45 : x
  2. Step 2: Convert to fraction form
    426,492,055.45/639,738,083.18 = 196,909,543.45/x
  3. Step 3: Cross multiply
    426,492,055.45x = 639,738,083.18 × 196,909,543.45
  4. Step 4: Simplify right side
    426,492,055.45x = 125,970,533,886,551,904
  5. Step 5: Solve for x
    x = 125,970,533,886,551,904/426,492,055.45
  6. Step 6: Final answer
    x = 295,364,315.18

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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.