Finding the Fourth Proportional to 90,693,799.93, 136,039,332.80 and 40,803,387.99
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Solution
The fourth proportional to 90,693,799.93, 136,039,332.80 and 40,803,387.99 is: 61,204,466.92
Step by Step Solution
- Step 1: Write the proportion equation
90,693,799.93 : 136,039,332.80 = 40,803,387.99 : x - Step 2: Convert to fraction form
90,693,799.93/136,039,332.80 = 40,803,387.99/x - Step 3: Cross multiply
90,693,799.93x = 136,039,332.80 × 40,803,387.99 - Step 4: Simplify right side
90,693,799.93x = 5,550,865,678,241,142 - Step 5: Solve for x
x = 5,550,865,678,241,142/90,693,799.93 - Step 6: Final answer
x = 61,204,466.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.