Finding the Fourth Proportional to 1,272,834,926.00, 1,909,539,648.68 and 387,599,475
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Solution
The fourth proportional to 1,272,834,926.00, 1,909,539,648.68 and 387,599,475 is: 581,486,687.87
Step by Step Solution
- Step 1: Write the proportion equation
1,272,834,926.00 : 1,909,539,648.68 = 387,599,475 : x - Step 2: Convert to fraction form
1,272,834,926.00/1,909,539,648.68 = 387,599,475/x - Step 3: Cross multiply
1,272,834,926.00x = 1,909,539,648.68 × 387,599,475 - Step 4: Simplify right side
1,272,834,926.00x = 740,136,565,318,114,432 - Step 5: Solve for x
x = 740,136,565,318,114,432/1,272,834,926.00 - Step 6: Final answer
x = 581,486,687.87
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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.