Finding the Fourth Proportional to 1,988,171,194.64, 2,982,687,281.08 and 761,339,689.88
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Solution
The fourth proportional to 1,988,171,194.64, 2,982,687,281.08 and 761,339,689.88 is: 1,142,174,384.03
Step by Step Solution
- Step 1: Write the proportion equation
1,988,171,194.64 : 2,982,687,281.08 = 761,339,689.88 : x - Step 2: Convert to fraction form
1,988,171,194.64/2,982,687,281.08 = 761,339,689.88/x - Step 3: Cross multiply
1,988,171,194.64x = 2,982,687,281.08 × 761,339,689.88 - Step 4: Simplify right side
1,988,171,194.64x = 2,270,838,209,586,467,584 - Step 5: Solve for x
x = 2,270,838,209,586,467,584/1,988,171,194.64 - Step 6: Final answer
x = 1,142,174,384.03
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.