Finding the Fourth Proportional to 21,547,709,220.63, 29,736,742,105.40 and 12,392,245,207.17
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Solution
The fourth proportional to 21,547,709,220.63, 29,736,742,105.40 and 12,392,245,207.17 is: 17,101,817,926.88
Step by Step Solution
- Step 1: Write the proportion equation
21,547,709,220.63 : 29,736,742,105.40 = 12,392,245,207.17 : x - Step 2: Convert to fraction form
21,547,709,220.63/29,736,742,105.40 = 12,392,245,207.17/x - Step 3: Cross multiply
21,547,709,220.63x = 29,736,742,105.40 × 12,392,245,207.17 - Step 4: Simplify right side
21,547,709,220.63x = 368,504,999,832,493,490,176 - Step 5: Solve for x
x = 368,504,999,832,493,490,176/21,547,709,220.63 - Step 6: Final answer
x = 17,101,817,926.88
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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.