Finding the Fourth Proportional to 143,342,054.88, 197,828,829.36 and 81,471,693.84
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Solution
The fourth proportional to 143,342,054.88, 197,828,829.36 and 81,471,693.84 is: 112,440,482.54
Step by Step Solution
- Step 1: Write the proportion equation
143,342,054.88 : 197,828,829.36 = 81,471,693.84 : x - Step 2: Convert to fraction form
143,342,054.88/197,828,829.36 = 81,471,693.84/x - Step 3: Cross multiply
143,342,054.88x = 197,828,829.36 × 81,471,693.84 - Step 4: Simplify right side
143,342,054.88x = 16,117,449,818,343,526 - Step 5: Solve for x
x = 16,117,449,818,343,526/143,342,054.88 - Step 6: Final answer
x = 112,440,482.54
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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.