Finding the Fourth Proportional to 21,557,439.96, 29,742,202.26 and 15,363,462.30
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Solution
The fourth proportional to 21,557,439.96, 29,742,202.26 and 15,363,462.30 is: 21,196,543.00
Step by Step Solution
- Step 1: Write the proportion equation
21,557,439.96 : 29,742,202.26 = 15,363,462.30 : x - Step 2: Convert to fraction form
21,557,439.96/29,742,202.26 = 15,363,462.30/x - Step 3: Cross multiply
21,557,439.96x = 29,742,202.26 × 15,363,462.30 - Step 4: Simplify right side
21,557,439.96x = 456,943,203,140,484.88 - Step 5: Solve for x
x = 456,943,203,140,484.88/21,557,439.96 - Step 6: Final answer
x = 21,196,543.00
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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.