Finding the Fourth Proportional to 1,394,165,430.90, 2,091,248,146.35 and 1,243,671,837.30
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Solution
The fourth proportional to 1,394,165,430.90, 2,091,248,146.35 and 1,243,671,837.30 is: 1,865,507,755.95
Step by Step Solution
- Step 1: Write the proportion equation
1,394,165,430.90 : 2,091,248,146.35 = 1,243,671,837.30 : x - Step 2: Convert to fraction form
1,394,165,430.90/2,091,248,146.35 = 1,243,671,837.30/x - Step 3: Cross multiply
1,394,165,430.90x = 2,091,248,146.35 × 1,243,671,837.30 - Step 4: Simplify right side
1,394,165,430.90x = 2,600,826,424,421,323,776 - Step 5: Solve for x
x = 2,600,826,424,421,323,776/1,394,165,430.90 - Step 6: Final answer
x = 1,865,507,755.95
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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.