Finding the Fourth Proportional to 1,160,064,893,519.10, 1,600,817,421,102.60 and 639,191,163,250.60
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Solution
The fourth proportional to 1,160,064,893,519.10, 1,600,817,421,102.60 and 639,191,163,250.60 is: 882,044,060,864.90
Step by Step Solution
- Step 1: Write the proportion equation
1,160,064,893,519.10 : 1,600,817,421,102.60 = 639,191,163,250.60 : x - Step 2: Convert to fraction form
1,160,064,893,519.10/1,600,817,421,102.60 = 639,191,163,250.60/x - Step 3: Cross multiply
1,160,064,893,519.10x = 1,600,817,421,102.60 × 639,191,163,250.60 - Step 4: Simplify right side
1,160,064,893,519.10x = 1,023,228,349,546,396,460,777,472 - Step 5: Solve for x
x = 1,023,228,349,546,396,460,777,472/1,160,064,893,519.10 - Step 6: Final answer
x = 882,044,060,864.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.