Finding the Fourth Proportional to 1,203,312,527.91, 1,660,174,346.05 and 726,824,856.47
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Solution
The fourth proportional to 1,203,312,527.91, 1,660,174,346.05 and 726,824,856.47 is: 1,002,778,540.72
Step by Step Solution
- Step 1: Write the proportion equation
1,203,312,527.91 : 1,660,174,346.05 = 726,824,856.47 : x - Step 2: Convert to fraction form
1,203,312,527.91/1,660,174,346.05 = 726,824,856.47/x - Step 3: Cross multiply
1,203,312,527.91x = 1,660,174,346.05 × 726,824,856.47 - Step 4: Simplify right side
1,203,312,527.91x = 1,206,655,980,772,849,408 - Step 5: Solve for x
x = 1,206,655,980,772,849,408/1,203,312,527.91 - Step 6: Final answer
x = 1,002,778,540.72
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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.