Finding the Fourth Proportional to 138,402,281.95, 207,603,422.93 and 80,864,936.35
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Solution
The fourth proportional to 138,402,281.95, 207,603,422.93 and 80,864,936.35 is: 121,297,404.53
Step by Step Solution
- Step 1: Write the proportion equation
138,402,281.95 : 207,603,422.93 = 80,864,936.35 : x - Step 2: Convert to fraction form
138,402,281.95/207,603,422.93 = 80,864,936.35/x - Step 3: Cross multiply
138,402,281.95x = 207,603,422.93 × 80,864,936.35 - Step 4: Simplify right side
138,402,281.95x = 16,787,837,580,872,256 - Step 5: Solve for x
x = 16,787,837,580,872,256/138,402,281.95 - Step 6: Final answer
x = 121,297,404.53
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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.