Finding the Fourth Proportional to 98,182,934.54, 135,462,419.79 and 56,921,590.70
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Solution
The fourth proportional to 98,182,934.54, 135,462,419.79 and 56,921,590.70 is: 78,534,385.34
Step by Step Solution
- Step 1: Write the proportion equation
98,182,934.54 : 135,462,419.79 = 56,921,590.70 : x - Step 2: Convert to fraction form
98,182,934.54/135,462,419.79 = 56,921,590.70/x - Step 3: Cross multiply
98,182,934.54x = 135,462,419.79 × 56,921,590.70 - Step 4: Simplify right side
98,182,934.54x = 7,710,736,414,517,960 - Step 5: Solve for x
x = 7,710,736,414,517,960/98,182,934.54 - Step 6: Final answer
x = 78,534,385.34
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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.