Finding the Fourth Proportional to 13,575,746.61, 18,734,603.50 and 7,994,235.26
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Solution
The fourth proportional to 13,575,746.61, 18,734,603.50 and 7,994,235.26 is: 11,032,087.75
Step by Step Solution
- Step 1: Write the proportion equation
13,575,746.61 : 18,734,603.50 = 7,994,235.26 : x - Step 2: Convert to fraction form
13,575,746.61/18,734,603.50 = 7,994,235.26/x - Step 3: Cross multiply
13,575,746.61x = 18,734,603.50 × 7,994,235.26 - Step 4: Simplify right side
13,575,746.61x = 149,768,827,938,648.72 - Step 5: Solve for x
x = 149,768,827,938,648.72/13,575,746.61 - Step 6: Final answer
x = 11,032,087.75
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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.