Finding the Fourth Proportional to 5,038,851,031.70, 7,558,276,547.55 and 4,120,520,983.70
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Solution
The fourth proportional to 5,038,851,031.70, 7,558,276,547.55 and 4,120,520,983.70 is: 6,180,781,475.55
Step by Step Solution
- Step 1: Write the proportion equation
5,038,851,031.70 : 7,558,276,547.55 = 4,120,520,983.70 : x - Step 2: Convert to fraction form
5,038,851,031.70/7,558,276,547.55 = 4,120,520,983.70/x - Step 3: Cross multiply
5,038,851,031.70x = 7,558,276,547.55 × 4,120,520,983.70 - Step 4: Simplify right side
5,038,851,031.70x = 31,144,037,114,787,364,864 - Step 5: Solve for x
x = 31,144,037,114,787,364,864/5,038,851,031.70 - Step 6: Final answer
x = 6,180,781,475.55
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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.