Finding the Fourth Proportional to 983,241,256.80, 1,473,903,293.64 and 392,855,503.80
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Solution
The fourth proportional to 983,241,256.80, 1,473,903,293.64 and 392,855,503.80 is: 588,900,249.02
Step by Step Solution
- Step 1: Write the proportion equation
983,241,256.80 : 1,473,903,293.64 = 392,855,503.80 : x - Step 2: Convert to fraction form
983,241,256.80/1,473,903,293.64 = 392,855,503.80/x - Step 3: Cross multiply
983,241,256.80x = 1,473,903,293.64 × 392,855,503.80 - Step 4: Simplify right side
983,241,256.80x = 579,031,020,975,421,568 - Step 5: Solve for x
x = 579,031,020,975,421,568/983,241,256.80 - Step 6: Final answer
x = 588,900,249.02
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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.