Finding the Fourth Proportional to 1,052,090,689.08, 1,452,090,511.98 and 634,470,966.84
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Solution
The fourth proportional to 1,052,090,689.08, 1,452,090,511.98 and 634,470,966.84 is: 875,693,778.72
Step by Step Solution
- Step 1: Write the proportion equation
1,052,090,689.08 : 1,452,090,511.98 = 634,470,966.84 : x - Step 2: Convert to fraction form
1,052,090,689.08/1,452,090,511.98 = 634,470,966.84/x - Step 3: Cross multiply
1,052,090,689.08x = 1,452,090,511.98 × 634,470,966.84 - Step 4: Simplify right side
1,052,090,689.08x = 921,309,271,075,141,248 - Step 5: Solve for x
x = 921,309,271,075,141,248/1,052,090,689.08 - Step 6: Final answer
x = 875,693,778.72
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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.