Finding the Fourth Proportional to 31,205,621.80, 46,808,432.70 and 29,316,053.80
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Solution
The fourth proportional to 31,205,621.80, 46,808,432.70 and 29,316,053.80 is: 43,974,080.70
Step by Step Solution
- Step 1: Write the proportion equation
31,205,621.80 : 46,808,432.70 = 29,316,053.80 : x - Step 2: Convert to fraction form
31,205,621.80/46,808,432.70 = 29,316,053.80/x - Step 3: Cross multiply
31,205,621.80x = 46,808,432.70 × 29,316,053.80 - Step 4: Simplify right side
31,205,621.80x = 1,372,238,531,326,879.50 - Step 5: Solve for x
x = 1,372,238,531,326,879.50/31,205,621.80 - Step 6: Final answer
x = 43,974,080.70
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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.