Finding the Fourth Proportional to 229,139,802.84, 316,239,853.96 and 128,684,749.16
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Solution
The fourth proportional to 229,139,802.84, 316,239,853.96 and 128,684,749.16 is: 177,600,075.49
Step by Step Solution
- Step 1: Write the proportion equation
229,139,802.84 : 316,239,853.96 = 128,684,749.16 : x - Step 2: Convert to fraction form
229,139,802.84/316,239,853.96 = 128,684,749.16/x - Step 3: Cross multiply
229,139,802.84x = 316,239,853.96 × 128,684,749.16 - Step 4: Simplify right side
229,139,802.84x = 40,695,246,281,237,632 - Step 5: Solve for x
x = 40,695,246,281,237,632/229,139,802.84 - Step 6: Final answer
x = 177,600,075.49
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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.