Finding the Fourth Proportional to 15,249,701.76, 21,044,734.08 and 8,374,327.68
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Solution
The fourth proportional to 15,249,701.76, 21,044,734.08 and 8,374,327.68 is: 11,556,652.18
Step by Step Solution
- Step 1: Write the proportion equation
15,249,701.76 : 21,044,734.08 = 8,374,327.68 : x - Step 2: Convert to fraction form
15,249,701.76/21,044,734.08 = 8,374,327.68/x - Step 3: Cross multiply
15,249,701.76x = 21,044,734.08 × 8,374,327.68 - Step 4: Simplify right side
15,249,701.76x = 176,235,499,124,383.31 - Step 5: Solve for x
x = 176,235,499,124,383.31/15,249,701.76 - Step 6: Final answer
x = 11,556,652.18
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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.