Finding the Fourth Proportional to 251,336,808.12, 346,847,987.16 and 138,319,312.32
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Solution
The fourth proportional to 251,336,808.12, 346,847,987.16 and 138,319,312.32 is: 190,882,407.64
Step by Step Solution
- Step 1: Write the proportion equation
251,336,808.12 : 346,847,987.16 = 138,319,312.32 : x - Step 2: Convert to fraction form
251,336,808.12/346,847,987.16 = 138,319,312.32/x - Step 3: Cross multiply
251,336,808.12x = 346,847,987.16 × 138,319,312.32 - Step 4: Simplify right side
251,336,808.12x = 47,975,775,063,547,392 - Step 5: Solve for x
x = 47,975,775,063,547,392/251,336,808.12 - Step 6: Final answer
x = 190,882,407.64
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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.