Finding the Fourth Proportional to 1,488,374,742.70, 2,053,983,266.16 and 810,211,194.82
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Solution
The fourth proportional to 1,488,374,742.70, 2,053,983,266.16 and 810,211,194.82 is: 1,118,105,668.20
Step by Step Solution
- Step 1: Write the proportion equation
1,488,374,742.70 : 2,053,983,266.16 = 810,211,194.82 : x - Step 2: Convert to fraction form
1,488,374,742.70/2,053,983,266.16 = 810,211,194.82/x - Step 3: Cross multiply
1,488,374,742.70x = 2,053,983,266.16 × 810,211,194.82 - Step 4: Simplify right side
1,488,374,742.70x = 1,664,160,236,215,779,840 - Step 5: Solve for x
x = 1,664,160,236,215,779,840/1,488,374,742.70 - Step 6: Final answer
x = 1,118,105,668.20
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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.