Finding the Fourth Proportional to 10,255,616.84, 14,157,109.14 and 6,390,047.88
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Solution
The fourth proportional to 10,255,616.84, 14,157,109.14 and 6,390,047.88 is: 8,820,981.39
Step by Step Solution
- Step 1: Write the proportion equation
10,255,616.84 : 14,157,109.14 = 6,390,047.88 : x - Step 2: Convert to fraction form
10,255,616.84/14,157,109.14 = 6,390,047.88/x - Step 3: Cross multiply
10,255,616.84x = 14,157,109.14 × 6,390,047.88 - Step 4: Simplify right side
10,255,616.84x = 90,464,605,246,985.62 - Step 5: Solve for x
x = 90,464,605,246,985.62/10,255,616.84 - Step 6: Final answer
x = 8,820,981.39
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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.