Finding the Fourth Proportional to 2,989,485,447.18, 4,125,409,988.96 and 1,651,346,736.80
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Solution
The fourth proportional to 2,989,485,447.18, 4,125,409,988.96 and 1,651,346,736.80 is: 2,278,814,345.68
Step by Step Solution
- Step 1: Write the proportion equation
2,989,485,447.18 : 4,125,409,988.96 = 1,651,346,736.80 : x - Step 2: Convert to fraction form
2,989,485,447.18/4,125,409,988.96 = 1,651,346,736.80/x - Step 3: Cross multiply
2,989,485,447.18x = 4,125,409,988.96 × 1,651,346,736.80 - Step 4: Simplify right side
2,989,485,447.18x = 6,812,482,323,231,219,712 - Step 5: Solve for x
x = 6,812,482,323,231,219,712/2,989,485,447.18 - Step 6: Final answer
x = 2,278,814,345.68
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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.