Finding the Fourth Proportional to 12,121,430.29, 16,727,929.08 and 6,615,159.17
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Solution
The fourth proportional to 12,121,430.29, 16,727,929.08 and 6,615,159.17 is: 9,129,113.54
Step by Step Solution
- Step 1: Write the proportion equation
12,121,430.29 : 16,727,929.08 = 6,615,159.17 : x - Step 2: Convert to fraction form
12,121,430.29/16,727,929.08 = 6,615,159.17/x - Step 3: Cross multiply
12,121,430.29x = 16,727,929.08 × 6,615,159.17 - Step 4: Simplify right side
12,121,430.29x = 110,657,913,340,225.17 - Step 5: Solve for x
x = 110,657,913,340,225.17/12,121,430.29 - Step 6: Final answer
x = 9,129,113.54
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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.