Finding the Fourth Proportional to 840,121,056.49, 1,159,385,616.84 and 463,776,752.83
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Solution
The fourth proportional to 840,121,056.49, 1,159,385,616.84 and 463,776,752.83 is: 640,022,164.07
Step by Step Solution
- Step 1: Write the proportion equation
840,121,056.49 : 1,159,385,616.84 = 463,776,752.83 : x - Step 2: Convert to fraction form
840,121,056.49/1,159,385,616.84 = 463,776,752.83/x - Step 3: Cross multiply
840,121,056.49x = 1,159,385,616.84 × 463,776,752.83 - Step 4: Simplify right side
840,121,056.49x = 537,696,096,655,861,696 - Step 5: Solve for x
x = 537,696,096,655,861,696/840,121,056.49 - Step 6: Final answer
x = 640,022,164.07
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1.5x scale
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.