Finding the Fourth Proportional to 1,214,248,780.08, 1,675,662,961.32 and 657,331,413.84
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Solution
The fourth proportional to 1,214,248,780.08, 1,675,662,961.32 and 657,331,413.84 is: 907,117,158.82
Step by Step Solution
- Step 1: Write the proportion equation
1,214,248,780.08 : 1,675,662,961.32 = 657,331,413.84 : x - Step 2: Convert to fraction form
1,214,248,780.08/1,675,662,961.32 = 657,331,413.84/x - Step 3: Cross multiply
1,214,248,780.08x = 1,675,662,961.32 × 657,331,413.84 - Step 4: Simplify right side
1,214,248,780.08x = 1,101,465,903,483,796,864 - Step 5: Solve for x
x = 1,101,465,903,483,796,864/1,214,248,780.08 - Step 6: Final answer
x = 907,117,158.82
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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.