Finding the Fourth Proportional to 38,440,776.48, 53,047,562.95 and 21,036,772.63
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Solution
The fourth proportional to 38,440,776.48, 53,047,562.95 and 21,036,772.63 is: 29,030,358.45
Step by Step Solution
- Step 1: Write the proportion equation
38,440,776.48 : 53,047,562.95 = 21,036,772.63 : x - Step 2: Convert to fraction form
38,440,776.48/53,047,562.95 = 21,036,772.63/x - Step 3: Cross multiply
38,440,776.48x = 53,047,562.95 × 21,036,772.63 - Step 4: Simplify right side
38,440,776.48x = 1,115,949,520,354,762.12 - Step 5: Solve for x
x = 1,115,949,520,354,762.12/38,440,776.48 - Step 6: Final answer
x = 29,030,358.45
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1.5x scale
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.