Finding the Fourth Proportional to 1,991,673,385.68, 2,748,750,285.54 and 1,133,556,602.88
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Solution
The fourth proportional to 1,991,673,385.68, 2,748,750,285.54 and 1,133,556,602.88 is: 1,564,445,284.17
Step by Step Solution
- Step 1: Write the proportion equation
1,991,673,385.68 : 2,748,750,285.54 = 1,133,556,602.88 : x - Step 2: Convert to fraction form
1,991,673,385.68/2,748,750,285.54 = 1,133,556,602.88/x - Step 3: Cross multiply
1,991,673,385.68x = 2,748,750,285.54 × 1,133,556,602.88 - Step 4: Simplify right side
1,991,673,385.68x = 3,115,864,035,842,152,448 - Step 5: Solve for x
x = 3,115,864,035,842,152,448/1,991,673,385.68 - Step 6: Final answer
x = 1,564,445,284.17
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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.