Finding the Fourth Proportional to 387,438,453.59, 534,336,130.70 and 327,381,671.68
Calculator
Solution
The fourth proportional to 387,438,453.59, 534,336,130.70 and 327,381,671.68 is: 451,508,759.89
Step by Step Solution
- Step 1: Write the proportion equation
387,438,453.59 : 534,336,130.70 = 327,381,671.68 : x - Step 2: Convert to fraction form
387,438,453.59/534,336,130.70 = 327,381,671.68/x - Step 3: Cross multiply
387,438,453.59x = 534,336,130.70 × 327,381,671.68 - Step 4: Simplify right side
387,438,453.59x = 174,931,855,710,695,392 - Step 5: Solve for x
x = 174,931,855,710,695,392/387,438,453.59 - Step 6: Final answer
x = 451,508,759.89
Related Problems
Find fourth proportional to 193,719,226.79, 267,168,065.35 and 163,690,835.84
Half scale
Find fourth proportional to 774,876,907.17, 1,068,672,261.41 and 654,763,343.37
Double scale
Find fourth proportional to 387,438,454.59, 534,336,132.08 and 327,381,672.68
Similar ratio
Find fourth proportional to 581,157,680.38, 801,504,196.06 and 491,072,507.52
1.5x scale
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.