Finding the Fourth Proportional to 387,961,729.12, 582,113,064.48 and 203,686,386.40
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Solution
The fourth proportional to 387,961,729.12, 582,113,064.48 and 203,686,386.40 is: 305,619,079.62
Step by Step Solution
- Step 1: Write the proportion equation
387,961,729.12 : 582,113,064.48 = 203,686,386.40 : x - Step 2: Convert to fraction form
387,961,729.12/582,113,064.48 = 203,686,386.40/x - Step 3: Cross multiply
387,961,729.12x = 582,113,064.48 × 203,686,386.40 - Step 4: Simplify right side
387,961,729.12x = 118,568,506,580,161,408 - Step 5: Solve for x
x = 118,568,506,580,161,408/387,961,729.12 - Step 6: Final answer
x = 305,619,079.62
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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.