Finding the Fourth Proportional to 906,896,995.79, 1,251,477,594.81 and 505,031,472.90
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Solution
The fourth proportional to 906,896,995.79, 1,251,477,594.81 and 505,031,472.90 is: 696,921,013.02
Step by Step Solution
- Step 1: Write the proportion equation
906,896,995.79 : 1,251,477,594.81 = 505,031,472.90 : x - Step 2: Convert to fraction form
906,896,995.79/1,251,477,594.81 = 505,031,472.90/x - Step 3: Cross multiply
906,896,995.79x = 1,251,477,594.81 × 505,031,472.90 - Step 4: Simplify right side
906,896,995.79x = 632,035,573,008,243,584 - Step 5: Solve for x
x = 632,035,573,008,243,584/906,896,995.79 - Step 6: Final answer
x = 696,921,013.02
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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.