Finding the Fourth Proportional to 2,688,771,472.80, 4,033,157,209.20 and 646,358,416.80
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Solution
The fourth proportional to 2,688,771,472.80, 4,033,157,209.20 and 646,358,416.80 is: 969,537,625.20
Step by Step Solution
- Step 1: Write the proportion equation
2,688,771,472.80 : 4,033,157,209.20 = 646,358,416.80 : x - Step 2: Convert to fraction form
2,688,771,472.80/4,033,157,209.20 = 646,358,416.80/x - Step 3: Cross multiply
2,688,771,472.80x = 4,033,157,209.20 × 646,358,416.80 - Step 4: Simplify right side
2,688,771,472.80x = 2,606,865,108,444,018,176 - Step 5: Solve for x
x = 2,606,865,108,444,018,176/2,688,771,472.80 - Step 6: Final answer
x = 969,537,625.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.