Finding the Fourth Proportional to 1,239,636,609.37, 1,710,775,827.88 and 682,719,508.81
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Solution
The fourth proportional to 1,239,636,609.37, 1,710,775,827.88 and 682,719,508.81 is: 942,195,498.32
Step by Step Solution
- Step 1: Write the proportion equation
1,239,636,609.37 : 1,710,775,827.88 = 682,719,508.81 : x - Step 2: Convert to fraction form
1,239,636,609.37/1,710,775,827.88 = 682,719,508.81/x - Step 3: Cross multiply
1,239,636,609.37x = 1,710,775,827.88 × 682,719,508.81 - Step 4: Simplify right side
1,239,636,609.37x = 1,167,980,032,898,577,664 - Step 5: Solve for x
x = 1,167,980,032,898,577,664/1,239,636,609.37 - Step 6: Final answer
x = 942,195,498.32
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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.