Finding the Fourth Proportional to 1,340,889,673.86, 1,850,588,840.50 and 812,238,148.62
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Solution
The fourth proportional to 1,340,889,673.86, 1,850,588,840.50 and 812,238,148.62 is: 1,120,986,225.02
Step by Step Solution
- Step 1: Write the proportion equation
1,340,889,673.86 : 1,850,588,840.50 = 812,238,148.62 : x - Step 2: Convert to fraction form
1,340,889,673.86/1,850,588,840.50 = 812,238,148.62/x - Step 3: Cross multiply
1,340,889,673.86x = 1,850,588,840.50 × 812,238,148.62 - Step 4: Simplify right side
1,340,889,673.86x = 1,503,118,853,664,552,448 - Step 5: Solve for x
x = 1,503,118,853,664,552,448/1,340,889,673.86 - Step 6: Final answer
x = 1,120,986,225.02
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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.