Finding the Fourth Proportional to 1,780,758,286.91, 2,671,137,513.40 and 1,219,967,129.08
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Solution
The fourth proportional to 1,780,758,286.91, 2,671,137,513.40 and 1,219,967,129.08 is: 1,829,950,750.51
Step by Step Solution
- Step 1: Write the proportion equation
1,780,758,286.91 : 2,671,137,513.40 = 1,219,967,129.08 : x - Step 2: Convert to fraction form
1,780,758,286.91/2,671,137,513.40 = 1,219,967,129.08/x - Step 3: Cross multiply
1,780,758,286.91x = 2,671,137,513.40 × 1,219,967,129.08 - Step 4: Simplify right side
1,780,758,286.91x = 3,258,699,963,600,487,936 - Step 5: Solve for x
x = 3,258,699,963,600,487,936/1,780,758,286.91 - Step 6: Final answer
x = 1,829,950,750.51
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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.