Finding the Fourth Proportional to 405,167,031.12, 558,914,821.53 and 246,445,699.53
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Solution
The fourth proportional to 405,167,031.12, 558,914,821.53 and 246,445,699.53 is: 339,963,875.61
Step by Step Solution
- Step 1: Write the proportion equation
405,167,031.12 : 558,914,821.53 = 246,445,699.53 : x - Step 2: Convert to fraction form
405,167,031.12/558,914,821.53 = 246,445,699.53/x - Step 3: Cross multiply
405,167,031.12x = 558,914,821.53 × 246,445,699.53 - Step 4: Simplify right side
405,167,031.12x = 137,742,154,169,645,952 - Step 5: Solve for x
x = 137,742,154,169,645,952/405,167,031.12 - Step 6: Final answer
x = 339,963,875.61
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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.