Finding the Fourth Proportional to 979,880,339.76, 1,352,230,790.74 and 533,842,314.40
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Solution
The fourth proportional to 979,880,339.76, 1,352,230,790.74 and 533,842,314.40 is: 736,700,172.09
Step by Step Solution
- Step 1: Write the proportion equation
979,880,339.76 : 1,352,230,790.74 = 533,842,314.40 : x - Step 2: Convert to fraction form
979,880,339.76/1,352,230,790.74 = 533,842,314.40/x - Step 3: Cross multiply
979,880,339.76x = 1,352,230,790.74 × 533,842,314.40 - Step 4: Simplify right side
979,880,339.76x = 721,878,014,931,583,616 - Step 5: Solve for x
x = 721,878,014,931,583,616/979,880,339.76 - Step 6: Final answer
x = 736,700,172.09
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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.