Finding the Fourth Proportional to 13,124,970.93, 18,112,461.47 and 7,244,607.12
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Solution
The fourth proportional to 13,124,970.93, 18,112,461.47 and 7,244,607.12 is: 9,997,558.70
Step by Step Solution
- Step 1: Write the proportion equation
13,124,970.93 : 18,112,461.47 = 7,244,607.12 : x - Step 2: Convert to fraction form
13,124,970.93/18,112,461.47 = 7,244,607.12/x - Step 3: Cross multiply
13,124,970.93x = 18,112,461.47 × 7,244,607.12 - Step 4: Simplify right side
13,124,970.93x = 131,217,667,326,287.66 - Step 5: Solve for x
x = 131,217,667,326,287.66/13,124,970.93 - Step 6: Final answer
x = 9,997,558.70
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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.