Finding the Fourth Proportional to 1,193,123,275.77, 1,646,561,152.17 and 664,487,177.08
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Solution
The fourth proportional to 1,193,123,275.77, 1,646,561,152.17 and 664,487,177.08 is: 917,020,725.45
Step by Step Solution
- Step 1: Write the proportion equation
1,193,123,275.77 : 1,646,561,152.17 = 664,487,177.08 : x - Step 2: Convert to fraction form
1,193,123,275.77/1,646,561,152.17 = 664,487,177.08/x - Step 3: Cross multiply
1,193,123,275.77x = 1,646,561,152.17 × 664,487,177.08 - Step 4: Simplify right side
1,193,123,275.77x = 1,094,118,771,895,035,776 - Step 5: Solve for x
x = 1,094,118,771,895,035,776/1,193,123,275.77 - Step 6: Final answer
x = 917,020,725.45
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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.