Finding the Fourth Proportional to 22,477,437.35, 31,018,851.05 and 12,687,966.08
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Solution
The fourth proportional to 22,477,437.35, 31,018,851.05 and 12,687,966.08 is: 17,509,386.14
Step by Step Solution
- Step 1: Write the proportion equation
22,477,437.35 : 31,018,851.05 = 12,687,966.08 : x - Step 2: Convert to fraction form
22,477,437.35/31,018,851.05 = 12,687,966.08/x - Step 3: Cross multiply
22,477,437.35x = 31,018,851.05 × 12,687,966.08 - Step 4: Simplify right side
22,477,437.35x = 393,566,129,962,972.38 - Step 5: Solve for x
x = 393,566,129,962,972.38/22,477,437.35 - Step 6: Final answer
x = 17,509,386.14
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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.