Finding the Fourth Proportional to 49,472,420.08, 68,243,574.84 and 30,855,238.55
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Solution
The fourth proportional to 49,472,420.08, 68,243,574.84 and 30,855,238.55 is: 42,562,538.44
Step by Step Solution
- Step 1: Write the proportion equation
49,472,420.08 : 68,243,574.84 = 30,855,238.55 : x - Step 2: Convert to fraction form
49,472,420.08/68,243,574.84 = 30,855,238.55/x - Step 3: Cross multiply
49,472,420.08x = 68,243,574.84 × 30,855,238.55 - Step 4: Simplify right side
49,472,420.08x = 2,105,671,781,270,731.50 - Step 5: Solve for x
x = 2,105,671,781,270,731.50/49,472,420.08 - Step 6: Final answer
x = 42,562,538.44
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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.