Finding the Fourth Proportional to 28,539,130.26, 39,319,360.10 and 27,178,641.30
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Solution
The fourth proportional to 28,539,130.26, 39,319,360.10 and 27,178,641.30 is: 37,444,966.77
Step by Step Solution
- Step 1: Write the proportion equation
28,539,130.26 : 39,319,360.10 = 27,178,641.30 : x - Step 2: Convert to fraction form
28,539,130.26/39,319,360.10 = 27,178,641.30/x - Step 3: Cross multiply
28,539,130.26x = 39,319,360.10 × 27,178,641.30 - Step 4: Simplify right side
28,539,130.26x = 1,068,646,784,167,538.88 - Step 5: Solve for x
x = 1,068,646,784,167,538.88/28,539,130.26 - Step 6: Final answer
x = 37,444,966.77
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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.