Finding the Fourth Proportional to 19,984,505.07, 29,931,355.35 and 15,639,476.55
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Solution
The fourth proportional to 19,984,505.07, 29,931,355.35 and 15,639,476.55 is: 23,423,683.92
Step by Step Solution
- Step 1: Write the proportion equation
19,984,505.07 : 29,931,355.35 = 15,639,476.55 : x - Step 2: Convert to fraction form
19,984,505.07/29,931,355.35 = 15,639,476.55/x - Step 3: Cross multiply
19,984,505.07x = 29,931,355.35 × 15,639,476.55 - Step 4: Simplify right side
19,984,505.07x = 468,110,730,106,042.06 - Step 5: Solve for x
x = 468,110,730,106,042.06/19,984,505.07 - Step 6: Final answer
x = 23,423,683.92
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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.