Finding the Fourth Proportional to 1,026,079,208.60, 1,415,951,372.80 and 556,170,440.48
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Solution
The fourth proportional to 1,026,079,208.60, 1,415,951,372.80 and 556,170,440.48 is: 767,494,645.74
Step by Step Solution
- Step 1: Write the proportion equation
1,026,079,208.60 : 1,415,951,372.80 = 556,170,440.48 : x - Step 2: Convert to fraction form
1,026,079,208.60/1,415,951,372.80 = 556,170,440.48/x - Step 3: Cross multiply
1,026,079,208.60x = 1,415,951,372.80 × 556,170,440.48 - Step 4: Simplify right side
1,026,079,208.60x = 787,510,298,708,436,736 - Step 5: Solve for x
x = 787,510,298,708,436,736/1,026,079,208.60 - Step 6: Final answer
x = 767,494,645.74
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1.5x scale
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.