Finding the Fourth Proportional to 66,317,158,962.99, 99,461,091,143.19 and 19,143,382,105.71
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Solution
The fourth proportional to 66,317,158,962.99, 99,461,091,143.19 and 19,143,382,105.71 is: 28,710,845,008.72
Step by Step Solution
- Step 1: Write the proportion equation
66,317,158,962.99 : 99,461,091,143.19 = 19,143,382,105.71 : x - Step 2: Convert to fraction form
66,317,158,962.99/99,461,091,143.19 = 19,143,382,105.71/x - Step 3: Cross multiply
66,317,158,962.99x = 99,461,091,143.19 × 19,143,382,105.71 - Step 4: Simplify right side
66,317,158,962.99x = 1,904,021,672,404,934,721,536 - Step 5: Solve for x
x = 1,904,021,672,404,934,721,536/66,317,158,962.99 - Step 6: Final answer
x = 28,710,845,008.72
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.