Finding the Fourth Proportional to 368,805,214.80, 553,207,822.20 and 347,642,053.20
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Solution
The fourth proportional to 368,805,214.80, 553,207,822.20 and 347,642,053.20 is: 521,463,079.80
Step by Step Solution
- Step 1: Write the proportion equation
368,805,214.80 : 553,207,822.20 = 347,642,053.20 : x - Step 2: Convert to fraction form
368,805,214.80/553,207,822.20 = 347,642,053.20/x - Step 3: Cross multiply
368,805,214.80x = 553,207,822.20 × 347,642,053.20 - Step 4: Simplify right side
368,805,214.80x = 192,318,303,155,908,544 - Step 5: Solve for x
x = 192,318,303,155,908,544/368,805,214.80 - Step 6: Final answer
x = 521,463,079.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.