Finding the Fourth Proportional to 527,563,627.32, 728,124,985.26 and 292,689,958.68
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Solution
The fourth proportional to 527,563,627.32, 728,124,985.26 and 292,689,958.68 is: 403,960,509.81
Step by Step Solution
- Step 1: Write the proportion equation
527,563,627.32 : 728,124,985.26 = 292,689,958.68 : x - Step 2: Convert to fraction form
527,563,627.32/728,124,985.26 = 292,689,958.68/x - Step 3: Cross multiply
527,563,627.32x = 728,124,985.26 × 292,689,958.68 - Step 4: Simplify right side
527,563,627.32x = 213,114,871,849,625,024 - Step 5: Solve for x
x = 213,114,871,849,625,024/527,563,627.32 - Step 6: Final answer
x = 403,960,509.81
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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.