Finding the Fourth Proportional to 475,091,701.20, 712,637,551.80 and 398,564,197.20
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Solution
The fourth proportional to 475,091,701.20, 712,637,551.80 and 398,564,197.20 is: 597,846,295.80
Step by Step Solution
- Step 1: Write the proportion equation
475,091,701.20 : 712,637,551.80 = 398,564,197.20 : x - Step 2: Convert to fraction form
475,091,701.20/712,637,551.80 = 398,564,197.20/x - Step 3: Cross multiply
475,091,701.20x = 712,637,551.80 × 398,564,197.20 - Step 4: Simplify right side
475,091,701.20x = 284,031,813,727,740,384 - Step 5: Solve for x
x = 284,031,813,727,740,384/475,091,701.20 - Step 6: Final answer
x = 597,846,295.80
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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.