Finding the Fourth Proportional to 916,416,620.80, 1,373,113,276.80 and 780,367,724.80
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Solution
The fourth proportional to 916,416,620.80, 1,373,113,276.80 and 780,367,724.80 is: 1,169,264,349.19
Step by Step Solution
- Step 1: Write the proportion equation
916,416,620.80 : 1,373,113,276.80 = 780,367,724.80 : x - Step 2: Convert to fraction form
916,416,620.80/1,373,113,276.80 = 780,367,724.80/x - Step 3: Cross multiply
916,416,620.80x = 1,373,113,276.80 × 780,367,724.80 - Step 4: Simplify right side
916,416,620.80x = 1,071,533,283,709,088,512 - Step 5: Solve for x
x = 1,071,533,283,709,088,512/916,416,620.80 - Step 6: Final answer
x = 1,169,264,349.19
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.