Finding the Fourth Proportional to 1,119,249,233.10, 1,678,873,849.65 and 353,244,804.30
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Solution
The fourth proportional to 1,119,249,233.10, 1,678,873,849.65 and 353,244,804.30 is: 529,867,206.45
Step by Step Solution
- Step 1: Write the proportion equation
1,119,249,233.10 : 1,678,873,849.65 = 353,244,804.30 : x - Step 2: Convert to fraction form
1,119,249,233.10/1,678,873,849.65 = 353,244,804.30/x - Step 3: Cross multiply
1,119,249,233.10x = 1,678,873,849.65 × 353,244,804.30 - Step 4: Simplify right side
1,119,249,233.10x = 593,053,464,464,001,920 - Step 5: Solve for x
x = 593,053,464,464,001,920/1,119,249,233.10 - Step 6: Final answer
x = 529,867,206.45
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Double scale
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Similar ratio
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1.5x scale
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.