Finding the Fourth Proportional to 7,853,313.70, 11,779,970.55 and 5,461,829.20
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Solution
The fourth proportional to 7,853,313.70, 11,779,970.55 and 5,461,829.20 is: 8,192,743.80
Step by Step Solution
- Step 1: Write the proportion equation
7,853,313.70 : 11,779,970.55 = 5,461,829.20 : x - Step 2: Convert to fraction form
7,853,313.70/11,779,970.55 = 5,461,829.20/x - Step 3: Cross multiply
7,853,313.70x = 11,779,970.55 × 5,461,829.20 - Step 4: Simplify right side
7,853,313.70x = 64,340,187,125,130.06 - Step 5: Solve for x
x = 64,340,187,125,130.06/7,853,313.70 - Step 6: Final answer
x = 8,192,743.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.