Finding the Fourth Proportional to 15,774,603.96, 21,768,967.98 and 8,531,259.96
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Solution
The fourth proportional to 15,774,603.96, 21,768,967.98 and 8,531,259.96 is: 11,773,146.59
Step by Step Solution
- Step 1: Write the proportion equation
15,774,603.96 : 21,768,967.98 = 8,531,259.96 : x - Step 2: Convert to fraction form
15,774,603.96/21,768,967.98 = 8,531,259.96/x - Step 3: Cross multiply
15,774,603.96x = 21,768,967.98 × 8,531,259.96 - Step 4: Simplify right side
15,774,603.96x = 185,716,724,898,296.09 - Step 5: Solve for x
x = 185,716,724,898,296.09/15,774,603.96 - Step 6: Final answer
x = 11,773,146.59
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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.