Finding the Fourth Proportional to 77,519,306.98, 106,979,066.70 and 44,485,598.74
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Solution
The fourth proportional to 77,519,306.98, 106,979,066.70 and 44,485,598.74 is: 61,391,516.77
Step by Step Solution
- Step 1: Write the proportion equation
77,519,306.98 : 106,979,066.70 = 44,485,598.74 : x - Step 2: Convert to fraction form
77,519,306.98/106,979,066.70 = 44,485,598.74/x - Step 3: Cross multiply
77,519,306.98x = 106,979,066.70 × 44,485,598.74 - Step 4: Simplify right side
77,519,306.98x = 4,759,027,834,795,896 - Step 5: Solve for x
x = 4,759,027,834,795,896/77,519,306.98 - Step 6: Final answer
x = 61,391,516.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.