Finding the Fourth Proportional to 21,348,980.68, 29,461,607.22 and 11,559,431.80
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Solution
The fourth proportional to 21,348,980.68, 29,461,607.22 and 11,559,431.80 is: 15,952,023.40
Step by Step Solution
- Step 1: Write the proportion equation
21,348,980.68 : 29,461,607.22 = 11,559,431.80 : x - Step 2: Convert to fraction form
21,348,980.68/29,461,607.22 = 11,559,431.80/x - Step 3: Cross multiply
21,348,980.68x = 29,461,607.22 × 11,559,431.80 - Step 4: Simplify right side
21,348,980.68x = 340,559,439,377,977.62 - Step 5: Solve for x
x = 340,559,439,377,977.62/21,348,980.68 - Step 6: Final answer
x = 15,952,023.40
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.