Finding the Fourth Proportional to 405,201,534.04, 607,862,836.35 and 128,861,763.40
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Solution
The fourth proportional to 405,201,534.04, 607,862,836.35 and 128,861,763.40 is: 193,311,896.47
Step by Step Solution
- Step 1: Write the proportion equation
405,201,534.04 : 607,862,836.35 = 128,861,763.40 : x - Step 2: Convert to fraction form
405,201,534.04/607,862,836.35 = 128,861,763.40/x - Step 3: Cross multiply
405,201,534.04x = 607,862,836.35 × 128,861,763.40 - Step 4: Simplify right side
405,201,534.04x = 78,330,276,997,386,624 - Step 5: Solve for x
x = 78,330,276,997,386,624/405,201,534.04 - Step 6: Final answer
x = 193,311,896.47
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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.