Finding the Fourth Proportional to 69,898,726.64, 104,848,086.90 and 66,403,515.98
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Solution
The fourth proportional to 69,898,726.64, 104,848,086.90 and 66,403,515.98 is: 99,605,271.06
Step by Step Solution
- Step 1: Write the proportion equation
69,898,726.64 : 104,848,086.90 = 66,403,515.98 : x - Step 2: Convert to fraction form
69,898,726.64/104,848,086.90 = 66,403,515.98/x - Step 3: Cross multiply
69,898,726.64x = 104,848,086.90 × 66,403,515.98 - Step 4: Simplify right side
69,898,726.64x = 6,962,281,613,936,579 - Step 5: Solve for x
x = 6,962,281,613,936,579/69,898,726.64 - Step 6: Final answer
x = 99,605,271.06
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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.