Finding the Fourth Proportional to 20,063,962.49, 27,688,430.86 and 10,896,670.85
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Solution
The fourth proportional to 20,063,962.49, 27,688,430.86 and 10,896,670.85 is: 15,037,494.09
Step by Step Solution
- Step 1: Write the proportion equation
20,063,962.49 : 27,688,430.86 = 10,896,670.85 : x - Step 2: Convert to fraction form
20,063,962.49/27,688,430.86 = 10,896,670.85/x - Step 3: Cross multiply
20,063,962.49x = 27,688,430.86 × 10,896,670.85 - Step 4: Simplify right side
20,063,962.49x = 301,711,717,268,718.62 - Step 5: Solve for x
x = 301,711,717,268,718.62/20,063,962.49 - Step 6: Final answer
x = 15,037,494.09
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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.