Finding the Fourth Proportional to 124,827,739.14, 172,275,246.34 and 71,906,275.74
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Solution
The fourth proportional to 124,827,739.14, 172,275,246.34 and 71,906,275.74 is: 99,238,129.70
Step by Step Solution
- Step 1: Write the proportion equation
124,827,739.14 : 172,275,246.34 = 71,906,275.74 : x - Step 2: Convert to fraction form
124,827,739.14/172,275,246.34 = 71,906,275.74/x - Step 3: Cross multiply
124,827,739.14x = 172,275,246.34 × 71,906,275.74 - Step 4: Simplify right side
124,827,739.14x = 12,387,671,366,500,466 - Step 5: Solve for x
x = 12,387,671,366,500,466/124,827,739.14 - Step 6: Final answer
x = 99,238,129.70
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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.