Finding the Fourth Proportional to 68,247,815.84, 94,182,612.53 and 38,878,713.12
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Solution
The fourth proportional to 68,247,815.84, 94,182,612.53 and 38,878,713.12 is: 53,652,981.10
Step by Step Solution
- Step 1: Write the proportion equation
68,247,815.84 : 94,182,612.53 = 38,878,713.12 : x - Step 2: Convert to fraction form
68,247,815.84/94,182,612.53 = 38,878,713.12/x - Step 3: Cross multiply
68,247,815.84x = 94,182,612.53 × 38,878,713.12 - Step 4: Simplify right side
68,247,815.84x = 3,661,698,773,251,594 - Step 5: Solve for x
x = 3,661,698,773,251,594/68,247,815.84 - Step 6: Final answer
x = 53,652,981.10
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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.