Finding the Fourth Proportional to 359,842,988.84, 539,764,483.05 and 87,213,755.84
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Solution
The fourth proportional to 359,842,988.84, 539,764,483.05 and 87,213,755.84 is: 130,820,633.70
Step by Step Solution
- Step 1: Write the proportion equation
359,842,988.84 : 539,764,483.05 = 87,213,755.84 : x - Step 2: Convert to fraction form
359,842,988.84/539,764,483.05 = 87,213,755.84/x - Step 3: Cross multiply
359,842,988.84x = 539,764,483.05 × 87,213,755.84 - Step 4: Simplify right side
359,842,988.84x = 47,074,887,833,127,688 - Step 5: Solve for x
x = 47,074,887,833,127,688/359,842,988.84 - Step 6: Final answer
x = 130,820,633.70
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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.