Finding the Fourth Proportional to 99,815,257.60, 149,778,873.60 and 42,297,740.80
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Solution
The fourth proportional to 99,815,257.60, 149,778,873.60 and 42,297,740.80 is: 63,470,336.35
Step by Step Solution
- Step 1: Write the proportion equation
99,815,257.60 : 149,778,873.60 = 42,297,740.80 : x - Step 2: Convert to fraction form
99,815,257.60/149,778,873.60 = 42,297,740.80/x - Step 3: Cross multiply
99,815,257.60x = 149,778,873.60 × 42,297,740.80 - Step 4: Simplify right side
99,815,257.60x = 6,335,307,972,848,762 - Step 5: Solve for x
x = 6,335,307,972,848,762/99,815,257.60 - Step 6: Final answer
x = 63,470,336.35
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.