Finding the Fourth Proportional to 1,931,587,205.28, 2,666,168,390.36 and 1,128,031,457.88
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Solution
The fourth proportional to 1,931,587,205.28, 2,666,168,390.36 and 1,128,031,457.88 is: 1,557,020,986.75
Step by Step Solution
- Step 1: Write the proportion equation
1,931,587,205.28 : 2,666,168,390.36 = 1,128,031,457.88 : x - Step 2: Convert to fraction form
1,931,587,205.28/2,666,168,390.36 = 1,128,031,457.88/x - Step 3: Cross multiply
1,931,587,205.28x = 2,666,168,390.36 × 1,128,031,457.88 - Step 4: Simplify right side
1,931,587,205.28x = 3,007,521,816,344,048,640 - Step 5: Solve for x
x = 3,007,521,816,344,048,640/1,931,587,205.28 - Step 6: Final answer
x = 1,557,020,986.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.