Finding the Fourth Proportional to 19,118,749.64, 28,683,395.40 and 7,612,297.32
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Solution
The fourth proportional to 19,118,749.64, 28,683,395.40 and 7,612,297.32 is: 11,420,544.65
Step by Step Solution
- Step 1: Write the proportion equation
19,118,749.64 : 28,683,395.40 = 7,612,297.32 : x - Step 2: Convert to fraction form
19,118,749.64/28,683,395.40 = 7,612,297.32/x - Step 3: Cross multiply
19,118,749.64x = 28,683,395.40 × 7,612,297.32 - Step 4: Simplify right side
19,118,749.64x = 218,346,533,931,920.31 - Step 5: Solve for x
x = 218,346,533,931,920.31/19,118,749.64 - Step 6: Final answer
x = 11,420,544.65
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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.