Finding the Fourth Proportional to 286,249,695.54, 395,041,453.47 and 215,560,589.91
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Solution
The fourth proportional to 286,249,695.54, 395,041,453.47 and 215,560,589.91 is: 297,486,320.77
Step by Step Solution
- Step 1: Write the proportion equation
286,249,695.54 : 395,041,453.47 = 215,560,589.91 : x - Step 2: Convert to fraction form
286,249,695.54/395,041,453.47 = 215,560,589.91/x - Step 3: Cross multiply
286,249,695.54x = 395,041,453.47 × 215,560,589.91 - Step 4: Simplify right side
286,249,695.54x = 85,155,368,748,897,024 - Step 5: Solve for x
x = 85,155,368,748,897,024/286,249,695.54 - Step 6: Final answer
x = 297,486,320.77
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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.