Finding the Fourth Proportional to 561,766,316.99, 842,982,368.33 and 312,979,810.84
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Solution
The fourth proportional to 561,766,316.99, 842,982,368.33 and 312,979,810.84 is: 469,655,182.60
Step by Step Solution
- Step 1: Write the proportion equation
561,766,316.99 : 842,982,368.33 = 312,979,810.84 : x - Step 2: Convert to fraction form
561,766,316.99/842,982,368.33 = 312,979,810.84/x - Step 3: Cross multiply
561,766,316.99x = 842,982,368.33 × 312,979,810.84 - Step 4: Simplify right side
561,766,316.99x = 263,836,462,185,971,296 - Step 5: Solve for x
x = 263,836,462,185,971,296/561,766,316.99 - Step 6: Final answer
x = 469,655,182.60
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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.