Finding the Fourth Proportional to 1,565,239,217.38, 2,348,243,193.89 and 778,664,002.66
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Solution
The fourth proportional to 1,565,239,217.38, 2,348,243,193.89 and 778,664,002.66 is: 1,168,187,216.54
Step by Step Solution
- Step 1: Write the proportion equation
1,565,239,217.38 : 2,348,243,193.89 = 778,664,002.66 : x - Step 2: Convert to fraction form
1,565,239,217.38/2,348,243,193.89 = 778,664,002.66/x - Step 3: Cross multiply
1,565,239,217.38x = 2,348,243,193.89 × 778,664,002.66 - Step 4: Simplify right side
1,565,239,217.38x = 1,828,492,444,573,489,664 - Step 5: Solve for x
x = 1,828,492,444,573,489,664/1,565,239,217.38 - Step 6: Final answer
x = 1,168,187,216.54
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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.