Finding the Fourth Proportional to 310,262,752.88, 428,165,551.80 and 171,038,508.08
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Solution
The fourth proportional to 310,262,752.88, 428,165,551.80 and 171,038,508.08 is: 236,034,768.95
Step by Step Solution
- Step 1: Write the proportion equation
310,262,752.88 : 428,165,551.80 = 171,038,508.08 : x - Step 2: Convert to fraction form
310,262,752.88/428,165,551.80 = 171,038,508.08/x - Step 3: Cross multiply
310,262,752.88x = 428,165,551.80 × 171,038,508.08 - Step 4: Simplify right side
310,262,752.88x = 73,232,797,191,121,968 - Step 5: Solve for x
x = 73,232,797,191,121,968/310,262,752.88 - Step 6: Final answer
x = 236,034,768.95
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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.