Finding the Fourth Proportional to 478,332,005.80, 717,498,008.70 and 417,865,829.80
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Solution
The fourth proportional to 478,332,005.80, 717,498,008.70 and 417,865,829.80 is: 626,798,744.70
Step by Step Solution
- Step 1: Write the proportion equation
478,332,005.80 : 717,498,008.70 = 417,865,829.80 : x - Step 2: Convert to fraction form
478,332,005.80/717,498,008.70 = 417,865,829.80/x - Step 3: Cross multiply
478,332,005.80x = 717,498,008.70 × 417,865,829.80 - Step 4: Simplify right side
478,332,005.80x = 299,817,900,785,273,152 - Step 5: Solve for x
x = 299,817,900,785,273,152/478,332,005.80 - Step 6: Final answer
x = 626,798,744.70
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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.