Finding the Fourth Proportional to 290,903,739.66, 401,455,638.99 and 158,753,248.17
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Solution
The fourth proportional to 290,903,739.66, 401,455,638.99 and 158,753,248.17 is: 219,084,109.27
Step by Step Solution
- Step 1: Write the proportion equation
290,903,739.66 : 401,455,638.99 = 158,753,248.17 : x - Step 2: Convert to fraction form
290,903,739.66/401,455,638.99 = 158,753,248.17/x - Step 3: Cross multiply
290,903,739.66x = 401,455,638.99 × 158,753,248.17 - Step 4: Simplify right side
290,903,739.66x = 63,732,386,685,825,392 - Step 5: Solve for x
x = 63,732,386,685,825,392/290,903,739.66 - Step 6: Final answer
x = 219,084,109.27
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.