Finding the Fourth Proportional to 2,159,510,878.08, 2,980,127,885.76 and 1,169,438,002.56
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Solution
The fourth proportional to 2,159,510,878.08, 2,980,127,885.76 and 1,169,438,002.56 is: 1,613,825,999.89
Step by Step Solution
- Step 1: Write the proportion equation
2,159,510,878.08 : 2,980,127,885.76 = 1,169,438,002.56 : x - Step 2: Convert to fraction form
2,159,510,878.08/2,980,127,885.76 = 1,169,438,002.56/x - Step 3: Cross multiply
2,159,510,878.08x = 2,980,127,885.76 × 1,169,438,002.56 - Step 4: Simplify right side
2,159,510,878.08x = 3,485,074,802,096,530,432 - Step 5: Solve for x
x = 3,485,074,802,096,530,432/2,159,510,878.08 - Step 6: Final answer
x = 1,613,825,999.89
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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.