Finding the Fourth Proportional to 9,725,829.93, 13,421,686.95 and 5,315,644.65
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Solution
The fourth proportional to 9,725,829.93, 13,421,686.95 and 5,315,644.65 is: 7,335,612.38
Step by Step Solution
- Step 1: Write the proportion equation
9,725,829.93 : 13,421,686.95 = 5,315,644.65 : x - Step 2: Convert to fraction form
9,725,829.93/13,421,686.95 = 5,315,644.65/x - Step 3: Cross multiply
9,725,829.93x = 13,421,686.95 × 5,315,644.65 - Step 4: Simplify right side
9,725,829.93x = 71,344,918,429,742.31 - Step 5: Solve for x
x = 71,344,918,429,742.31/9,725,829.93 - Step 6: Final answer
x = 7,335,612.38
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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.