Finding the Fourth Proportional to 1,248,214,236.23, 1,721,706,038.55 and 802,741,125.31
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Solution
The fourth proportional to 1,248,214,236.23, 1,721,706,038.55 and 802,741,125.31 is: 1,107,249,222.70
Step by Step Solution
- Step 1: Write the proportion equation
1,248,214,236.23 : 1,721,706,038.55 = 802,741,125.31 : x - Step 2: Convert to fraction form
1,248,214,236.23/1,721,706,038.55 = 802,741,125.31/x - Step 3: Cross multiply
1,248,214,236.23x = 1,721,706,038.55 × 802,741,125.31 - Step 4: Simplify right side
1,248,214,236.23x = 1,382,084,242,834,344,960 - Step 5: Solve for x
x = 1,382,084,242,834,344,960/1,248,214,236.23 - Step 6: Final answer
x = 1,107,249,222.70
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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.