Finding the Fourth Proportional to 27,708,352.80, 38,238,707.76 and 15,485,209.44
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Solution
The fourth proportional to 27,708,352.80, 38,238,707.76 and 15,485,209.44 is: 21,370,248.99
Step by Step Solution
- Step 1: Write the proportion equation
27,708,352.80 : 38,238,707.76 = 15,485,209.44 : x - Step 2: Convert to fraction form
27,708,352.80/38,238,707.76 = 15,485,209.44/x - Step 3: Cross multiply
27,708,352.80x = 38,238,707.76 × 15,485,209.44 - Step 4: Simplify right side
27,708,352.80x = 592,134,398,378,553.25 - Step 5: Solve for x
x = 592,134,398,378,553.25/27,708,352.80 - Step 6: Final answer
x = 21,370,248.99
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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.