Finding the Fourth Proportional to 93,312,268.70, 139,968,403.05 and 81,974,860.70
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Solution
The fourth proportional to 93,312,268.70, 139,968,403.05 and 81,974,860.70 is: 122,962,291.05
Step by Step Solution
- Step 1: Write the proportion equation
93,312,268.70 : 139,968,403.05 = 81,974,860.70 : x - Step 2: Convert to fraction form
93,312,268.70/139,968,403.05 = 81,974,860.70/x - Step 3: Cross multiply
93,312,268.70x = 139,968,403.05 × 81,974,860.70 - Step 4: Simplify right side
93,312,268.70x = 11,473,890,342,425,206 - Step 5: Solve for x
x = 11,473,890,342,425,206/93,312,268.70 - Step 6: Final answer
x = 122,962,291.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.