Finding the Fourth Proportional to 19,357,501.14, 26,698,430.70 and 12,019,678.74
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Solution
The fourth proportional to 19,357,501.14, 26,698,430.70 and 12,019,678.74 is: 16,577,891.82
Step by Step Solution
- Step 1: Write the proportion equation
19,357,501.14 : 26,698,430.70 = 12,019,678.74 : x - Step 2: Convert to fraction form
19,357,501.14/26,698,430.70 = 12,019,678.74/x - Step 3: Cross multiply
19,357,501.14x = 26,698,430.70 × 12,019,678.74 - Step 4: Simplify right side
19,357,501.14x = 320,906,559,876,153.31 - Step 5: Solve for x
x = 320,906,559,876,153.31/19,357,501.14 - Step 6: Final answer
x = 16,577,891.82
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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.