Finding the Fourth Proportional to 7,779,817,925.64, 11,663,187,506.64 and 6,302,293,650.78
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Solution
The fourth proportional to 7,779,817,925.64, 11,663,187,506.64 and 6,302,293,650.78 is: 9,448,143,037.99
Step by Step Solution
- Step 1: Write the proportion equation
7,779,817,925.64 : 11,663,187,506.64 = 6,302,293,650.78 : x - Step 2: Convert to fraction form
7,779,817,925.64/11,663,187,506.64 = 6,302,293,650.78/x - Step 3: Cross multiply
7,779,817,925.64x = 11,663,187,506.64 × 6,302,293,650.78 - Step 4: Simplify right side
7,779,817,925.64x = 73,504,832,570,953,883,648 - Step 5: Solve for x
x = 73,504,832,570,953,883,648/7,779,817,925.64 - Step 6: Final answer
x = 9,448,143,037.99
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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.