Finding the Fourth Proportional to 806,129,930.88, 1,112,423,521.68 and 448,916,132.76
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Solution
The fourth proportional to 806,129,930.88, 1,112,423,521.68 and 448,916,132.76 is: 619,484,336.48
Step by Step Solution
- Step 1: Write the proportion equation
806,129,930.88 : 1,112,423,521.68 = 448,916,132.76 : x - Step 2: Convert to fraction form
806,129,930.88/1,112,423,521.68 = 448,916,132.76/x - Step 3: Cross multiply
806,129,930.88x = 1,112,423,521.68 × 448,916,132.76 - Step 4: Simplify right side
806,129,930.88x = 499,384,865,343,845,632 - Step 5: Solve for x
x = 499,384,865,343,845,632/806,129,930.88 - Step 6: Final answer
x = 619,484,336.48
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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.