Finding the Fourth Proportional to 42,708,232.58, 58,937,046.65 and 23,128,666.74
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Solution
The fourth proportional to 42,708,232.58, 58,937,046.65 and 23,128,666.74 is: 31,917,389.89
Step by Step Solution
- Step 1: Write the proportion equation
42,708,232.58 : 58,937,046.65 = 23,128,666.74 : x - Step 2: Convert to fraction form
42,708,232.58/58,937,046.65 = 23,128,666.74/x - Step 3: Cross multiply
42,708,232.58x = 58,937,046.65 × 23,128,666.74 - Step 4: Simplify right side
42,708,232.58x = 1,363,135,310,607,683.25 - Step 5: Solve for x
x = 1,363,135,310,607,683.25/42,708,232.58 - Step 6: Final answer
x = 31,917,389.89
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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.