Finding the Fourth Proportional to 3,078,877,867.62, 4,249,016,430.65 and 1,722,430,851.53
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Solution
The fourth proportional to 3,078,877,867.62, 4,249,016,430.65 and 1,722,430,851.53 is: 2,377,046,866.91
Step by Step Solution
- Step 1: Write the proportion equation
3,078,877,867.62 : 4,249,016,430.65 = 1,722,430,851.53 : x - Step 2: Convert to fraction form
3,078,877,867.62/4,249,016,430.65 = 1,722,430,851.53/x - Step 3: Cross multiply
3,078,877,867.62x = 4,249,016,430.65 × 1,722,430,851.53 - Step 4: Simplify right side
3,078,877,867.62x = 7,318,636,988,824,370,176 - Step 5: Solve for x
x = 7,318,636,988,824,370,176/3,078,877,867.62 - Step 6: Final answer
x = 2,377,046,866.91
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.