Home / 77,998,208.45-107,636,202.74-43,190,151.55

Finding the Fourth Proportional to 77,998,208.45, 107,636,202.74 and 43,190,151.55

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Solution

The fourth proportional to 77,998,208.45, 107,636,202.74 and 43,190,151.55 is: 59,601,675.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,998,208.45 : 107,636,202.74 = 43,190,151.55 : x
  2. Step 2: Convert to fraction form
    77,998,208.45/107,636,202.74 = 43,190,151.55/x
  3. Step 3: Cross multiply
    77,998,208.45x = 107,636,202.74 × 43,190,151.55
  4. Step 4: Simplify right side
    77,998,208.45x = 4,648,823,908,446,010
  5. Step 5: Solve for x
    x = 4,648,823,908,446,010/77,998,208.45
  6. Step 6: Final answer
    x = 59,601,675.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.