Finding the Fourth Proportional to 1,564,088,688.64, 2,158,464,496.80 and 859,305,805.12
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Solution
The fourth proportional to 1,564,088,688.64, 2,158,464,496.80 and 859,305,805.12 is: 1,185,854,156.30
Step by Step Solution
- Step 1: Write the proportion equation
1,564,088,688.64 : 2,158,464,496.80 = 859,305,805.12 : x - Step 2: Convert to fraction form
1,564,088,688.64/2,158,464,496.80 = 859,305,805.12/x - Step 3: Cross multiply
1,564,088,688.64x = 2,158,464,496.80 × 859,305,805.12 - Step 4: Simplify right side
1,564,088,688.64x = 1,854,781,072,245,659,904 - Step 5: Solve for x
x = 1,854,781,072,245,659,904/1,564,088,688.64 - Step 6: Final answer
x = 1,185,854,156.30
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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.