Finding the Fourth Proportional to 1,455,140,515.20, 2,183,029,637.40 and 718,563,289.20
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Solution
The fourth proportional to 1,455,140,515.20, 2,183,029,637.40 and 718,563,289.20 is: 1,078,002,392.41
Step by Step Solution
- Step 1: Write the proportion equation
1,455,140,515.20 : 2,183,029,637.40 = 718,563,289.20 : x - Step 2: Convert to fraction form
1,455,140,515.20/2,183,029,637.40 = 718,563,289.20/x - Step 3: Cross multiply
1,455,140,515.20x = 2,183,029,637.40 × 718,563,289.20 - Step 4: Simplify right side
1,455,140,515.20x = 1,568,644,956,671,227,392 - Step 5: Solve for x
x = 1,568,644,956,671,227,392/1,455,140,515.20 - Step 6: Final answer
x = 1,078,002,392.41
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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.