Finding the Fourth Proportional to 340,116,321.80, 510,174,482.70 and 272,091,873.80
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Solution
The fourth proportional to 340,116,321.80, 510,174,482.70 and 272,091,873.80 is: 408,137,810.70
Step by Step Solution
- Step 1: Write the proportion equation
340,116,321.80 : 510,174,482.70 = 272,091,873.80 : x - Step 2: Convert to fraction form
340,116,321.80/510,174,482.70 = 272,091,873.80/x - Step 3: Cross multiply
340,116,321.80x = 510,174,482.70 × 272,091,873.80 - Step 4: Simplify right side
340,116,321.80x = 138,814,330,962,788,688 - Step 5: Solve for x
x = 138,814,330,962,788,688/340,116,321.80 - Step 6: Final answer
x = 408,137,810.70
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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.