Finding the Fourth Proportional to 229,139,802.81, 316,239,853.95 and 128,684,749.14
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Solution
The fourth proportional to 229,139,802.81, 316,239,853.95 and 128,684,749.14 is: 177,600,075.48
Step by Step Solution
- Step 1: Write the proportion equation
229,139,802.81 : 316,239,853.95 = 128,684,749.14 : x - Step 2: Convert to fraction form
229,139,802.81/316,239,853.95 = 128,684,749.14/x - Step 3: Cross multiply
229,139,802.81x = 316,239,853.95 × 128,684,749.14 - Step 4: Simplify right side
229,139,802.81x = 40,695,246,273,625,984 - Step 5: Solve for x
x = 40,695,246,273,625,984/229,139,802.81 - Step 6: Final answer
x = 177,600,075.48
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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.