Finding the Fourth Proportional to 19,819,257.60, 29,721,746.88 and 6,861,890.28
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Solution
The fourth proportional to 19,819,257.60, 29,721,746.88 and 6,861,890.28 is: 10,290,363.55
Step by Step Solution
- Step 1: Write the proportion equation
19,819,257.60 : 29,721,746.88 = 6,861,890.28 : x - Step 2: Convert to fraction form
19,819,257.60/29,721,746.88 = 6,861,890.28/x - Step 3: Cross multiply
19,819,257.60x = 29,721,746.88 × 6,861,890.28 - Step 4: Simplify right side
19,819,257.60x = 203,947,366,020,492.31 - Step 5: Solve for x
x = 203,947,366,020,492.31/19,819,257.60 - Step 6: Final answer
x = 10,290,363.55
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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.