Finding the Fourth Proportional to 1,126,327,935.40, 1,554,335,898.82 and 624,572,067.08
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Solution
The fourth proportional to 1,126,327,935.40, 1,554,335,898.82 and 624,572,067.08 is: 861,911,309.09
Step by Step Solution
- Step 1: Write the proportion equation
1,126,327,935.40 : 1,554,335,898.82 = 624,572,067.08 : x - Step 2: Convert to fraction form
1,126,327,935.40/1,554,335,898.82 = 624,572,067.08/x - Step 3: Cross multiply
1,126,327,935.40x = 1,554,335,898.82 × 624,572,067.08 - Step 4: Simplify right side
1,126,327,935.40x = 970,794,785,262,657,152 - Step 5: Solve for x
x = 970,794,785,262,657,152/1,126,327,935.40 - Step 6: Final answer
x = 861,911,309.09
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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.