Finding the Fourth Proportional to 10,291,874.95, 14,202,809.40 and 5,645,698.17
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Solution
The fourth proportional to 10,291,874.95, 14,202,809.40 and 5,645,698.17 is: 7,791,075.53
Step by Step Solution
- Step 1: Write the proportion equation
10,291,874.95 : 14,202,809.40 = 5,645,698.17 : x - Step 2: Convert to fraction form
10,291,874.95/14,202,809.40 = 5,645,698.17/x - Step 3: Cross multiply
10,291,874.95x = 14,202,809.40 × 5,645,698.17 - Step 4: Simplify right side
10,291,874.95x = 80,184,775,038,438.80 - Step 5: Solve for x
x = 80,184,775,038,438.80/10,291,874.95 - Step 6: Final answer
x = 7,791,075.53
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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.