Finding the Fourth Proportional to 665,759,985.08, 917,996,932.74 and 497,958,484.41
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Solution
The fourth proportional to 665,759,985.08, 917,996,932.74 and 497,958,484.41 is: 686,620,361.04
Step by Step Solution
- Step 1: Write the proportion equation
665,759,985.08 : 917,996,932.74 = 497,958,484.41 : x - Step 2: Convert to fraction form
665,759,985.08/917,996,932.74 = 497,958,484.41/x - Step 3: Cross multiply
665,759,985.08x = 917,996,932.74 × 497,958,484.41 - Step 4: Simplify right side
665,759,985.08x = 457,124,361,318,371,840 - Step 5: Solve for x
x = 457,124,361,318,371,840/665,759,985.08 - Step 6: Final answer
x = 686,620,361.04
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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.