Finding the Fourth Proportional to 1,229,678,978,067.90, 1,697,010,332,321.70 and 680,970,283,000.99
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Solution
The fourth proportional to 1,229,678,978,067.90, 1,697,010,332,321.70 and 680,970,283,000.99 is: 939,768,530,541.56
Step by Step Solution
- Step 1: Write the proportion equation
1,229,678,978,067.90 : 1,697,010,332,321.70 = 680,970,283,000.99 : x - Step 2: Convert to fraction form
1,229,678,978,067.90/1,697,010,332,321.70 = 680,970,283,000.99/x - Step 3: Cross multiply
1,229,678,978,067.90x = 1,697,010,332,321.70 × 680,970,283,000.99 - Step 4: Simplify right side
1,229,678,978,067.90x = 1,155,613,606,256,712,137,834,496 - Step 5: Solve for x
x = 1,155,613,606,256,712,137,834,496/1,229,678,978,067.90 - Step 6: Final answer
x = 939,768,530,541.56
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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.