Finding the Fourth Proportional to 13,748,530.12, 18,973,288.14 and 7,553,963.18
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Solution
The fourth proportional to 13,748,530.12, 18,973,288.14 and 7,553,963.18 is: 10,424,643.13
Step by Step Solution
- Step 1: Write the proportion equation
13,748,530.12 : 18,973,288.14 = 7,553,963.18 : x - Step 2: Convert to fraction form
13,748,530.12/18,973,288.14 = 7,553,963.18/x - Step 3: Cross multiply
13,748,530.12x = 18,973,288.14 × 7,553,963.18 - Step 4: Simplify right side
13,748,530.12x = 143,323,520,013,090.69 - Step 5: Solve for x
x = 143,323,520,013,090.69/13,748,530.12 - Step 6: Final answer
x = 10,424,643.13
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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.