Finding the Fourth Proportional to 292,479,699.28, 403,386,637.08 and 257,121,904.72
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Solution
The fourth proportional to 292,479,699.28, 403,386,637.08 and 257,121,904.72 is: 354,621,331.74
Step by Step Solution
- Step 1: Write the proportion equation
292,479,699.28 : 403,386,637.08 = 257,121,904.72 : x - Step 2: Convert to fraction form
292,479,699.28/403,386,637.08 = 257,121,904.72/x - Step 3: Cross multiply
292,479,699.28x = 403,386,637.08 × 257,121,904.72 - Step 4: Simplify right side
292,479,699.28x = 103,719,540,464,604,976 - Step 5: Solve for x
x = 103,719,540,464,604,976/292,479,699.28 - Step 6: Final answer
x = 354,621,331.74
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.