Finding the Fourth Proportional to 688,344,251.10, 964,398,587.70 and 688,344,251.10
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Solution
The fourth proportional to 688,344,251.10, 964,398,587.70 and 688,344,251.10 is: 964,398,587.70
Step by Step Solution
- Step 1: Write the proportion equation
688,344,251.10 : 964,398,587.70 = 688,344,251.10 : x - Step 2: Convert to fraction form
688,344,251.10/964,398,587.70 = 688,344,251.10/x - Step 3: Cross multiply
688,344,251.10x = 964,398,587.70 × 688,344,251.10 - Step 4: Simplify right side
688,344,251.10x = 663,838,223,612,254,208 - Step 5: Solve for x
x = 663,838,223,612,254,208/688,344,251.10 - Step 6: Final answer
x = 964,398,587.70
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.