Finding the Fourth Proportional to 4,139,342,894.12, 5,712,264,134.79 and 2,259,748,177.88
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Solution
The fourth proportional to 4,139,342,894.12, 5,712,264,134.79 and 2,259,748,177.88 is: 3,118,436,621.55
Step by Step Solution
- Step 1: Write the proportion equation
4,139,342,894.12 : 5,712,264,134.79 = 2,259,748,177.88 : x - Step 2: Convert to fraction form
4,139,342,894.12/5,712,264,134.79 = 2,259,748,177.88/x - Step 3: Cross multiply
4,139,342,894.12x = 5,712,264,134.79 × 2,259,748,177.88 - Step 4: Simplify right side
4,139,342,894.12x = 12,908,278,470,160,977,920 - Step 5: Solve for x
x = 12,908,278,470,160,977,920/4,139,342,894.12 - Step 6: Final answer
x = 3,118,436,621.55
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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.