Finding the Fourth Proportional to 620,630,237.80, 931,172,361.36 and 288,795,509.02
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Solution
The fourth proportional to 620,630,237.80, 931,172,361.36 and 288,795,509.02 is: 433,298,894.75
Step by Step Solution
- Step 1: Write the proportion equation
620,630,237.80 : 931,172,361.36 = 288,795,509.02 : x - Step 2: Convert to fraction form
620,630,237.80/931,172,361.36 = 288,795,509.02/x - Step 3: Cross multiply
620,630,237.80x = 931,172,361.36 × 288,795,509.02 - Step 4: Simplify right side
620,630,237.80x = 268,918,396,084,316,576 - Step 5: Solve for x
x = 268,918,396,084,316,576/620,630,237.80 - Step 6: Final answer
x = 433,298,894.75
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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.