Finding the Fourth Proportional to 28,926,767.04, 39,919,428.36 and 15,875,240.28
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Solution
The fourth proportional to 28,926,767.04, 39,919,428.36 and 15,875,240.28 is: 21,908,100.42
Step by Step Solution
- Step 1: Write the proportion equation
28,926,767.04 : 39,919,428.36 = 15,875,240.28 : x - Step 2: Convert to fraction form
28,926,767.04/39,919,428.36 = 15,875,240.28/x - Step 3: Cross multiply
28,926,767.04x = 39,919,428.36 × 15,875,240.28 - Step 4: Simplify right side
28,926,767.04x = 633,730,517,055,246.25 - Step 5: Solve for x
x = 633,730,517,055,246.25/28,926,767.04 - Step 6: Final answer
x = 21,908,100.42
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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.