Finding the Fourth Proportional to 908,121,347.70, 1,362,182,021.55 and 862,771,715.70
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Solution
The fourth proportional to 908,121,347.70, 1,362,182,021.55 and 862,771,715.70 is: 1,294,157,573.55
Step by Step Solution
- Step 1: Write the proportion equation
908,121,347.70 : 1,362,182,021.55 = 862,771,715.70 : x - Step 2: Convert to fraction form
908,121,347.70/1,362,182,021.55 = 862,771,715.70/x - Step 3: Cross multiply
908,121,347.70x = 1,362,182,021.55 × 862,771,715.70 - Step 4: Simplify right side
908,121,347.70x = 1,175,252,119,828,387,840 - Step 5: Solve for x
x = 1,175,252,119,828,387,840/908,121,347.70 - Step 6: Final answer
x = 1,294,157,573.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.