Finding the Fourth Proportional to 155,285,691.76, 214,292,776.80 and 85,671,634.96
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Solution
The fourth proportional to 155,285,691.76, 214,292,776.80 and 85,671,634.96 is: 118,226,040.92
Step by Step Solution
- Step 1: Write the proportion equation
155,285,691.76 : 214,292,776.80 = 85,671,634.96 : x - Step 2: Convert to fraction form
155,285,691.76/214,292,776.80 = 85,671,634.96/x - Step 3: Cross multiply
155,285,691.76x = 214,292,776.80 × 85,671,634.96 - Step 4: Simplify right side
155,285,691.76x = 18,358,812,548,574,356 - Step 5: Solve for x
x = 18,358,812,548,574,356/155,285,691.76 - Step 6: Final answer
x = 118,226,040.92
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.