Finding the Fourth Proportional to 19,984,373.87, 29,931,159.97 and 15,639,345.47
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Solution
The fourth proportional to 19,984,373.87, 29,931,159.97 and 15,639,345.47 is: 23,423,488.48
Step by Step Solution
- Step 1: Write the proportion equation
19,984,373.87 : 29,931,159.97 = 15,639,345.47 : x - Step 2: Convert to fraction form
19,984,373.87/29,931,159.97 = 15,639,345.47/x - Step 3: Cross multiply
19,984,373.87x = 29,931,159.97 × 15,639,345.47 - Step 4: Simplify right side
19,984,373.87x = 468,103,751,088,664.81 - Step 5: Solve for x
x = 468,103,751,088,664.81/19,984,373.87 - Step 6: Final answer
x = 23,423,488.48
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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.