Finding the Fourth Proportional to 42,083,918.10, 58,115,914.11 and 39,791,206.47
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Solution
The fourth proportional to 42,083,918.10, 58,115,914.11 and 39,791,206.47 is: 54,949,787.04
Step by Step Solution
- Step 1: Write the proportion equation
42,083,918.10 : 58,115,914.11 = 39,791,206.47 : x - Step 2: Convert to fraction form
42,083,918.10/58,115,914.11 = 39,791,206.47/x - Step 3: Cross multiply
42,083,918.10x = 58,115,914.11 × 39,791,206.47 - Step 4: Simplify right side
42,083,918.10x = 2,312,502,337,543,796 - Step 5: Solve for x
x = 2,312,502,337,543,796/42,083,918.10 - Step 6: Final answer
x = 54,949,787.04
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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.