Finding the Fourth Proportional to 159,081,238.12, 219,506,449.98 and 89,462,467.12
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Solution
The fourth proportional to 159,081,238.12, 219,506,449.98 and 89,462,467.12 is: 123,443,774.99
Step by Step Solution
- Step 1: Write the proportion equation
159,081,238.12 : 219,506,449.98 = 89,462,467.12 : x - Step 2: Convert to fraction form
159,081,238.12/219,506,449.98 = 89,462,467.12/x - Step 3: Cross multiply
159,081,238.12x = 219,506,449.98 × 89,462,467.12 - Step 4: Simplify right side
159,081,238.12x = 19,637,588,563,963,676 - Step 5: Solve for x
x = 19,637,588,563,963,676/159,081,238.12 - Step 6: Final answer
x = 123,443,774.99
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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.