Finding the Fourth Proportional to 1,260,411,349.80, 1,889,341,566.30 and 742,575,239.40
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Solution
The fourth proportional to 1,260,411,349.80, 1,889,341,566.30 and 742,575,239.40 is: 1,113,111,418.84
Step by Step Solution
- Step 1: Write the proportion equation
1,260,411,349.80 : 1,889,341,566.30 = 742,575,239.40 : x - Step 2: Convert to fraction form
1,260,411,349.80/1,889,341,566.30 = 742,575,239.40/x - Step 3: Cross multiply
1,260,411,349.80x = 1,889,341,566.30 × 742,575,239.40 - Step 4: Simplify right side
1,260,411,349.80x = 1,402,978,265,903,593,472 - Step 5: Solve for x
x = 1,402,978,265,903,593,472/1,260,411,349.80 - Step 6: Final answer
x = 1,113,111,418.84
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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.