Finding the Fourth Proportional to 1,418,558,490.60, 2,124,254,555.10 and 931,245,901.80
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Solution
The fourth proportional to 1,418,558,490.60, 2,124,254,555.10 and 931,245,901.80 is: 1,394,516,589.85
Step by Step Solution
- Step 1: Write the proportion equation
1,418,558,490.60 : 2,124,254,555.10 = 931,245,901.80 : x - Step 2: Convert to fraction form
1,418,558,490.60/2,124,254,555.10 = 931,245,901.80/x - Step 3: Cross multiply
1,418,558,490.60x = 2,124,254,555.10 × 931,245,901.80 - Step 4: Simplify right side
1,418,558,490.60x = 1,978,203,348,816,857,088 - Step 5: Solve for x
x = 1,978,203,348,816,857,088/1,418,558,490.60 - Step 6: Final answer
x = 1,394,516,589.85
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.