Finding the Fourth Proportional to 17,312,681.40, 25,934,807.70 and 15,185,167.80
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Solution
The fourth proportional to 17,312,681.40, 25,934,807.70 and 15,185,167.80 is: 22,747,741.82
Step by Step Solution
- Step 1: Write the proportion equation
17,312,681.40 : 25,934,807.70 = 15,185,167.80 : x - Step 2: Convert to fraction form
17,312,681.40/25,934,807.70 = 15,185,167.80/x - Step 3: Cross multiply
17,312,681.40x = 25,934,807.70 × 15,185,167.80 - Step 4: Simplify right side
17,312,681.40x = 393,824,406,785,232.06 - Step 5: Solve for x
x = 393,824,406,785,232.06/17,312,681.40 - Step 6: Final answer
x = 22,747,741.82
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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.