Finding the Fourth Proportional to 135,411,583.71, 186,865,316.51 and 79,663,029.15
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Solution
The fourth proportional to 135,411,583.71, 186,865,316.51 and 79,663,029.15 is: 109,933,410.04
Step by Step Solution
- Step 1: Write the proportion equation
135,411,583.71 : 186,865,316.51 = 79,663,029.15 : x - Step 2: Convert to fraction form
135,411,583.71/186,865,316.51 = 79,663,029.15/x - Step 3: Cross multiply
135,411,583.71x = 186,865,316.51 × 79,663,029.15 - Step 4: Simplify right side
135,411,583.71x = 14,886,257,155,861,792 - Step 5: Solve for x
x = 14,886,257,155,861,792/135,411,583.71 - Step 6: Final answer
x = 109,933,410.04
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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.