Finding the Fourth Proportional to 103,389,980.84, 142,699,345.68 and 61,598,528
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Solution
The fourth proportional to 103,389,980.84, 142,699,345.68 and 61,598,528 is: 85,018,582.74
Step by Step Solution
- Step 1: Write the proportion equation
103,389,980.84 : 142,699,345.68 = 61,598,528 : x - Step 2: Convert to fraction form
103,389,980.84/142,699,345.68 = 61,598,528/x - Step 3: Cross multiply
103,389,980.84x = 142,699,345.68 × 61,598,528 - Step 4: Simplify right side
103,389,980.84x = 8,790,069,640,451,159 - Step 5: Solve for x
x = 8,790,069,640,451,159/103,389,980.84 - Step 6: Final answer
x = 85,018,582.74
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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.