Finding the Fourth Proportional to 1,458,029,257.74, 2,012,085,708.84 and 788,974,307.96
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Solution
The fourth proportional to 1,458,029,257.74, 2,012,085,708.84 and 788,974,307.96 is: 1,088,787,430.88
Step by Step Solution
- Step 1: Write the proportion equation
1,458,029,257.74 : 2,012,085,708.84 = 788,974,307.96 : x - Step 2: Convert to fraction form
1,458,029,257.74/2,012,085,708.84 = 788,974,307.96/x - Step 3: Cross multiply
1,458,029,257.74x = 2,012,085,708.84 × 788,974,307.96 - Step 4: Simplify right side
1,458,029,257.74x = 1,587,483,929,678,184,704 - Step 5: Solve for x
x = 1,587,483,929,678,184,704/1,458,029,257.74 - Step 6: Final answer
x = 1,088,787,430.88
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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.