Finding the Fourth Proportional to 11,382,987.18, 15,708,569.31 and 6,155,995.23
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Solution
The fourth proportional to 11,382,987.18, 15,708,569.31 and 6,155,995.23 is: 8,495,298.84
Step by Step Solution
- Step 1: Write the proportion equation
11,382,987.18 : 15,708,569.31 = 6,155,995.23 : x - Step 2: Convert to fraction form
11,382,987.18/15,708,569.31 = 6,155,995.23/x - Step 3: Cross multiply
11,382,987.18x = 15,708,569.31 × 6,155,995.23 - Step 4: Simplify right side
11,382,987.18x = 96,701,877,742,484.41 - Step 5: Solve for x
x = 96,701,877,742,484.41/11,382,987.18 - Step 6: Final answer
x = 8,495,298.84
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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.