Finding the Fourth Proportional to 319,873,203.96, 479,986,854.51 and 156,112,317.02
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Solution
The fourth proportional to 319,873,203.96, 479,986,854.51 and 156,112,317.02 is: 234,254,883.09
Step by Step Solution
- Step 1: Write the proportion equation
319,873,203.96 : 479,986,854.51 = 156,112,317.02 : x - Step 2: Convert to fraction form
319,873,203.96/479,986,854.51 = 156,112,317.02/x - Step 3: Cross multiply
319,873,203.96x = 479,986,854.51 × 156,112,317.02 - Step 4: Simplify right side
319,873,203.96x = 74,931,859,996,697,744 - Step 5: Solve for x
x = 74,931,859,996,697,744/319,873,203.96 - Step 6: Final answer
x = 234,254,883.09
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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.