Finding the Fourth Proportional to 993,456,576.51, 1,370,999,319.92 and 547,448,670.06
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Solution
The fourth proportional to 993,456,576.51, 1,370,999,319.92 and 547,448,670.06 is: 755,495,279.90
Step by Step Solution
- Step 1: Write the proportion equation
993,456,576.51 : 1,370,999,319.92 = 547,448,670.06 : x - Step 2: Convert to fraction form
993,456,576.51/1,370,999,319.92 = 547,448,670.06/x - Step 3: Cross multiply
993,456,576.51x = 1,370,999,319.92 × 547,448,670.06 - Step 4: Simplify right side
993,456,576.51x = 750,551,754,343,368,448 - Step 5: Solve for x
x = 750,551,754,343,368,448/993,456,576.51 - Step 6: Final answer
x = 755,495,279.90
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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.