Finding the Fourth Proportional to 77,526,276.58, 106,988,543.76 and 42,721,209.02
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Solution
The fourth proportional to 77,526,276.58, 106,988,543.76 and 42,721,209.02 is: 58,956,526.00
Step by Step Solution
- Step 1: Write the proportion equation
77,526,276.58 : 106,988,543.76 = 42,721,209.02 : x - Step 2: Convert to fraction form
77,526,276.58/106,988,543.76 = 42,721,209.02/x - Step 3: Cross multiply
77,526,276.58x = 106,988,543.76 × 42,721,209.02 - Step 4: Simplify right side
77,526,276.58x = 4,570,679,940,716,377 - Step 5: Solve for x
x = 4,570,679,940,716,377/77,526,276.58 - Step 6: Final answer
x = 58,956,526.00
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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.