Finding the Fourth Proportional to 90,804,740.74, 125,313,188.61 and 49,554,290.14
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Solution
The fourth proportional to 90,804,740.74, 125,313,188.61 and 49,554,290.14 is: 68,386,364.59
Step by Step Solution
- Step 1: Write the proportion equation
90,804,740.74 : 125,313,188.61 = 49,554,290.14 : x - Step 2: Convert to fraction form
90,804,740.74/125,313,188.61 = 49,554,290.14/x - Step 3: Cross multiply
90,804,740.74x = 125,313,188.61 × 49,554,290.14 - Step 4: Simplify right side
90,804,740.74x = 6,209,806,106,748,483 - Step 5: Solve for x
x = 6,209,806,106,748,483/90,804,740.74 - Step 6: Final answer
x = 68,386,364.59
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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.