Finding the Fourth Proportional to 1,338,602,091.90, 1,845,323,991.68 and 935,464,225.08
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Solution
The fourth proportional to 1,338,602,091.90, 1,845,323,991.68 and 935,464,225.08 is: 1,289,580,068.89
Step by Step Solution
- Step 1: Write the proportion equation
1,338,602,091.90 : 1,845,323,991.68 = 935,464,225.08 : x - Step 2: Convert to fraction form
1,338,602,091.90/1,845,323,991.68 = 935,464,225.08/x - Step 3: Cross multiply
1,338,602,091.90x = 1,845,323,991.68 × 935,464,225.08 - Step 4: Simplify right side
1,338,602,091.90x = 1,726,234,577,893,786,368 - Step 5: Solve for x
x = 1,726,234,577,893,786,368/1,338,602,091.90 - Step 6: Final answer
x = 1,289,580,068.89
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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.