Finding the Fourth Proportional to 853,634,639.04, 1,177,655,081.58 and 571,467,989.58
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Solution
The fourth proportional to 853,634,639.04, 1,177,655,081.58 and 571,467,989.58 is: 788,384,340.46
Step by Step Solution
- Step 1: Write the proportion equation
853,634,639.04 : 1,177,655,081.58 = 571,467,989.58 : x - Step 2: Convert to fraction form
853,634,639.04/1,177,655,081.58 = 571,467,989.58/x - Step 3: Cross multiply
853,634,639.04x = 1,177,655,081.58 × 571,467,989.58 - Step 4: Simplify right side
853,634,639.04x = 672,992,181,889,193,472 - Step 5: Solve for x
x = 672,992,181,889,193,472/853,634,639.04 - Step 6: Final answer
x = 788,384,340.46
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Double scale
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1.5x scale
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.