Finding the Fourth Proportional to 472,395,946.20, 708,593,919.30 and 450,872,585.70
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Solution
The fourth proportional to 472,395,946.20, 708,593,919.30 and 450,872,585.70 is: 676,308,878.55
Step by Step Solution
- Step 1: Write the proportion equation
472,395,946.20 : 708,593,919.30 = 450,872,585.70 : x - Step 2: Convert to fraction form
472,395,946.20/708,593,919.30 = 450,872,585.70/x - Step 3: Cross multiply
472,395,946.20x = 708,593,919.30 × 450,872,585.70 - Step 4: Simplify right side
472,395,946.20x = 319,485,572,606,088,128 - Step 5: Solve for x
x = 319,485,572,606,088,128/472,395,946.20 - Step 6: Final answer
x = 676,308,878.55
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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.