Finding the Fourth Proportional to 1,370,248,873.62, 1,890,944,845.06 and 743,717,430.74
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Solution
The fourth proportional to 1,370,248,873.62, 1,890,944,845.06 and 743,717,430.74 is: 1,026,330,814.00
Step by Step Solution
- Step 1: Write the proportion equation
1,370,248,873.62 : 1,890,944,845.06 = 743,717,430.74 : x - Step 2: Convert to fraction form
1,370,248,873.62/1,890,944,845.06 = 743,717,430.74/x - Step 3: Cross multiply
1,370,248,873.62x = 1,890,944,845.06 × 743,717,430.74 - Step 4: Simplify right side
1,370,248,873.62x = 1,406,328,641,839,070,464 - Step 5: Solve for x
x = 1,406,328,641,839,070,464/1,370,248,873.62 - Step 6: Final answer
x = 1,026,330,814.00
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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.