Home / 645,943,161.60-968,867,874.45-252,395,988.93

Finding the Fourth Proportional to 645,943,161.60, 968,867,874.45 and 252,395,988.93

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Solution

The fourth proportional to 645,943,161.60, 968,867,874.45 and 252,395,988.93 is: 378,575,670.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,943,161.60 : 968,867,874.45 = 252,395,988.93 : x
  2. Step 2: Convert to fraction form
    645,943,161.60/968,867,874.45 = 252,395,988.93/x
  3. Step 3: Cross multiply
    645,943,161.60x = 968,867,874.45 × 252,395,988.93
  4. Step 4: Simplify right side
    645,943,161.60x = 244,538,365,314,314,848
  5. Step 5: Solve for x
    x = 244,538,365,314,314,848/645,943,161.60
  6. Step 6: Final answer
    x = 378,575,670.20

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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.