Finding the Fourth Proportional to 19,449,769.68, 26,842,298.40 and 10,749,641.76
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Solution
The fourth proportional to 19,449,769.68, 26,842,298.40 and 10,749,641.76 is: 14,835,398.91
Step by Step Solution
- Step 1: Write the proportion equation
19,449,769.68 : 26,842,298.40 = 10,749,641.76 : x - Step 2: Convert to fraction form
19,449,769.68/26,842,298.40 = 10,749,641.76/x - Step 3: Cross multiply
19,449,769.68x = 26,842,298.40 × 10,749,641.76 - Step 4: Simplify right side
19,449,769.68x = 288,545,091,815,021.19 - Step 5: Solve for x
x = 288,545,091,815,021.19/19,449,769.68 - Step 6: Final answer
x = 14,835,398.91
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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.