Finding the Fourth Proportional to 77,710,740.03, 107,240,980.50 and 42,903,497.79
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Solution
The fourth proportional to 77,710,740.03, 107,240,980.50 and 42,903,497.79 is: 59,206,914.88
Step by Step Solution
- Step 1: Write the proportion equation
77,710,740.03 : 107,240,980.50 = 42,903,497.79 : x - Step 2: Convert to fraction form
77,710,740.03/107,240,980.50 = 42,903,497.79/x - Step 3: Cross multiply
77,710,740.03x = 107,240,980.50 × 42,903,497.79 - Step 4: Simplify right side
77,710,740.03x = 4,601,013,169,879,183 - Step 5: Solve for x
x = 4,601,013,169,879,183/77,710,740.03 - Step 6: Final answer
x = 59,206,914.88
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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.