Finding the Fourth Proportional to 646,917,868.32, 970,021,437.84 and 318,671,135.52
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Solution
The fourth proportional to 646,917,868.32, 970,021,437.84 and 318,671,135.52 is: 477,831,650.99
Step by Step Solution
- Step 1: Write the proportion equation
646,917,868.32 : 970,021,437.84 = 318,671,135.52 : x - Step 2: Convert to fraction form
646,917,868.32/970,021,437.84 = 318,671,135.52/x - Step 3: Cross multiply
646,917,868.32x = 970,021,437.84 × 318,671,135.52 - Step 4: Simplify right side
646,917,868.32x = 309,117,833,075,215,872 - Step 5: Solve for x
x = 309,117,833,075,215,872/646,917,868.32 - Step 6: Final answer
x = 477,831,650.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.