Finding the Fourth Proportional to 15,392,848.41, 21,240,683.58 and 10,421,175.75
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Solution
The fourth proportional to 15,392,848.41, 21,240,683.58 and 10,421,175.75 is: 14,380,242.74
Step by Step Solution
- Step 1: Write the proportion equation
15,392,848.41 : 21,240,683.58 = 10,421,175.75 : x - Step 2: Convert to fraction form
15,392,848.41/21,240,683.58 = 10,421,175.75/x - Step 3: Cross multiply
15,392,848.41x = 21,240,683.58 × 10,421,175.75 - Step 4: Simplify right side
15,392,848.41x = 221,352,896,637,319.16 - Step 5: Solve for x
x = 221,352,896,637,319.16/15,392,848.41 - Step 6: Final answer
x = 14,380,242.74
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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.