Finding the Fourth Proportional to 445,824,259.70, 668,736,389.55 and 118,299,139.70
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Solution
The fourth proportional to 445,824,259.70, 668,736,389.55 and 118,299,139.70 is: 177,448,709.55
Step by Step Solution
- Step 1: Write the proportion equation
445,824,259.70 : 668,736,389.55 = 118,299,139.70 : x - Step 2: Convert to fraction form
445,824,259.70/668,736,389.55 = 118,299,139.70/x - Step 3: Cross multiply
445,824,259.70x = 668,736,389.55 × 118,299,139.70 - Step 4: Simplify right side
445,824,259.70x = 79,110,939,569,849,072 - Step 5: Solve for x
x = 79,110,939,569,849,072/445,824,259.70 - Step 6: Final answer
x = 177,448,709.55
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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.