Finding the Fourth Proportional to 1,116,828,900.70, 1,675,243,351.05 and 298,941,201.70
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Solution
The fourth proportional to 1,116,828,900.70, 1,675,243,351.05 and 298,941,201.70 is: 448,411,802.55
Step by Step Solution
- Step 1: Write the proportion equation
1,116,828,900.70 : 1,675,243,351.05 = 298,941,201.70 : x - Step 2: Convert to fraction form
1,116,828,900.70/1,675,243,351.05 = 298,941,201.70/x - Step 3: Cross multiply
1,116,828,900.70x = 1,675,243,351.05 × 298,941,201.70 - Step 4: Simplify right side
1,116,828,900.70x = 500,799,260,502,821,952 - Step 5: Solve for x
x = 500,799,260,502,821,952/1,116,828,900.70 - Step 6: Final answer
x = 448,411,802.55
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Double scale
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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.