Finding the Fourth Proportional to 1,391,344,785.74, 1,920,980,375.99 and 1,068,898,462.34
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Solution
The fourth proportional to 1,391,344,785.74, 1,920,980,375.99 and 1,068,898,462.34 is: 1,475,790,178.77
Step by Step Solution
- Step 1: Write the proportion equation
1,391,344,785.74 : 1,920,980,375.99 = 1,068,898,462.34 : x - Step 2: Convert to fraction form
1,391,344,785.74/1,920,980,375.99 = 1,068,898,462.34/x - Step 3: Cross multiply
1,391,344,785.74x = 1,920,980,375.99 × 1,068,898,462.34 - Step 4: Simplify right side
1,391,344,785.74x = 2,053,332,970,066,076,672 - Step 5: Solve for x
x = 2,053,332,970,066,076,672/1,391,344,785.74 - Step 6: Final answer
x = 1,475,790,178.77
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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.