Finding the Fourth Proportional to 1,169,918,830.40, 1,614,507,497.76 and 634,087,602.80
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Solution
The fourth proportional to 1,169,918,830.40, 1,614,507,497.76 and 634,087,602.80 is: 875,051,467.12
Step by Step Solution
- Step 1: Write the proportion equation
1,169,918,830.40 : 1,614,507,497.76 = 634,087,602.80 : x - Step 2: Convert to fraction form
1,169,918,830.40/1,614,507,497.76 = 634,087,602.80/x - Step 3: Cross multiply
1,169,918,830.40x = 1,614,507,497.76 × 634,087,602.80 - Step 4: Simplify right side
1,169,918,830.40x = 1,023,739,188,957,264,640 - Step 5: Solve for x
x = 1,023,739,188,957,264,640/1,169,918,830.40 - Step 6: Final answer
x = 875,051,467.12
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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.