Finding the Fourth Proportional to 77,047,823.21, 106,325,970.44 and 42,239,766.31
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Solution
The fourth proportional to 77,047,823.21, 106,325,970.44 and 42,239,766.31 is: 58,290,863.48
Step by Step Solution
- Step 1: Write the proportion equation
77,047,823.21 : 106,325,970.44 = 42,239,766.31 : x - Step 2: Convert to fraction form
77,047,823.21/106,325,970.44 = 42,239,766.31/x - Step 3: Cross multiply
77,047,823.21x = 106,325,970.44 × 42,239,766.31 - Step 4: Simplify right side
77,047,823.21x = 4,491,184,143,592,554 - Step 5: Solve for x
x = 4,491,184,143,592,554/77,047,823.21 - Step 6: Final answer
x = 58,290,863.48
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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.