Finding the Fourth Proportional to 282,928,634.36, 390,441,534.19 and 157,478,138.04
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Solution
The fourth proportional to 282,928,634.36, 390,441,534.19 and 157,478,138.04 is: 217,319,840.95
Step by Step Solution
- Step 1: Write the proportion equation
282,928,634.36 : 390,441,534.19 = 157,478,138.04 : x - Step 2: Convert to fraction form
282,928,634.36/390,441,534.19 = 157,478,138.04/x - Step 3: Cross multiply
282,928,634.36x = 390,441,534.19 × 157,478,138.04 - Step 4: Simplify right side
282,928,634.36x = 61,486,005,819,679,256 - Step 5: Solve for x
x = 61,486,005,819,679,256/282,928,634.36 - Step 6: Final answer
x = 217,319,840.95
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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.