Finding the Fourth Proportional to 540,349,093.80, 745,682,386.98 and 292,830,448.05
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Solution
The fourth proportional to 540,349,093.80, 745,682,386.98 and 292,830,448.05 is: 404,106,363.81
Step by Step Solution
- Step 1: Write the proportion equation
540,349,093.80 : 745,682,386.98 = 292,830,448.05 : x - Step 2: Convert to fraction form
540,349,093.80/745,682,386.98 = 292,830,448.05/x - Step 3: Cross multiply
540,349,093.80x = 745,682,386.98 × 292,830,448.05 - Step 4: Simplify right side
540,349,093.80x = 218,358,507,482,346,912 - Step 5: Solve for x
x = 218,358,507,482,346,912/540,349,093.80 - Step 6: Final answer
x = 404,106,363.81
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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.