Finding the Fourth Proportional to 1,134,329,979.62, 1,565,486,964.52 and 688,258,333.26
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Solution
The fourth proportional to 1,134,329,979.62, 1,565,486,964.52 and 688,258,333.26 is: 949,864,209.09
Step by Step Solution
- Step 1: Write the proportion equation
1,134,329,979.62 : 1,565,486,964.52 = 688,258,333.26 : x - Step 2: Convert to fraction form
1,134,329,979.62/1,565,486,964.52 = 688,258,333.26/x - Step 3: Cross multiply
1,134,329,979.62x = 1,565,486,964.52 × 688,258,333.26 - Step 4: Simplify right side
1,134,329,979.62x = 1,077,459,448,943,889,024 - Step 5: Solve for x
x = 1,077,459,448,943,889,024/1,134,329,979.62 - Step 6: Final answer
x = 949,864,209.09
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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.