Finding the Fourth Proportional to 15,773,878.18, 21,768,017.50 and 8,530,534.18
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Solution
The fourth proportional to 15,773,878.18, 21,768,017.50 and 8,530,534.18 is: 11,772,172.65
Step by Step Solution
- Step 1: Write the proportion equation
15,773,878.18 : 21,768,017.50 = 8,530,534.18 : x - Step 2: Convert to fraction form
15,773,878.18/21,768,017.50 = 8,530,534.18/x - Step 3: Cross multiply
15,773,878.18x = 21,768,017.50 × 8,530,534.18 - Step 4: Simplify right side
15,773,878.18x = 185,692,817,314,588.16 - Step 5: Solve for x
x = 185,692,817,314,588.16/15,773,878.18 - Step 6: Final answer
x = 11,772,172.65
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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.