Finding the Fourth Proportional to 1,571,178,771.84, 2,356,615,128.72 and 638,557,537.44
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Solution
The fourth proportional to 1,571,178,771.84, 2,356,615,128.72 and 638,557,537.44 is: 957,774,112.19
Step by Step Solution
- Step 1: Write the proportion equation
1,571,178,771.84 : 2,356,615,128.72 = 638,557,537.44 : x - Step 2: Convert to fraction form
1,571,178,771.84/2,356,615,128.72 = 638,557,537.44/x - Step 3: Cross multiply
1,571,178,771.84x = 2,356,615,128.72 × 638,557,537.44 - Step 4: Simplify right side
1,571,178,771.84x = 1,504,834,353,289,291,776 - Step 5: Solve for x
x = 1,504,834,353,289,291,776/1,571,178,771.84 - Step 6: Final answer
x = 957,774,112.19
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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.