Finding the Fourth Proportional to 630,406,929.40, 944,334,935.70 and 436,537,252.60
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Solution
The fourth proportional to 630,406,929.40, 944,334,935.70 and 436,537,252.60 is: 653,922,663.50
Step by Step Solution
- Step 1: Write the proportion equation
630,406,929.40 : 944,334,935.70 = 436,537,252.60 : x - Step 2: Convert to fraction form
630,406,929.40/944,334,935.70 = 436,537,252.60/x - Step 3: Cross multiply
630,406,929.40x = 944,334,935.70 × 436,537,252.60 - Step 4: Simplify right side
630,406,929.40x = 412,237,378,364,675,712 - Step 5: Solve for x
x = 412,237,378,364,675,712/630,406,929.40 - Step 6: Final answer
x = 653,922,663.50
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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.