Finding the Fourth Proportional to 979,880,338.76, 1,352,230,789.36 and 533,842,313.40
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Solution
The fourth proportional to 979,880,338.76, 1,352,230,789.36 and 533,842,313.40 is: 736,700,170.71
Step by Step Solution
- Step 1: Write the proportion equation
979,880,338.76 : 1,352,230,789.36 = 533,842,313.40 : x - Step 2: Convert to fraction form
979,880,338.76/1,352,230,789.36 = 533,842,313.40/x - Step 3: Cross multiply
979,880,338.76x = 1,352,230,789.36 × 533,842,313.40 - Step 4: Simplify right side
979,880,338.76x = 721,878,012,842,650,368 - Step 5: Solve for x
x = 721,878,012,842,650,368/979,880,338.76 - Step 6: Final answer
x = 736,700,170.71
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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.