Finding the Fourth Proportional to 1,724,817,637.80, 2,587,226,456.70 and 689,166,412.20
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Solution
The fourth proportional to 1,724,817,637.80, 2,587,226,456.70 and 689,166,412.20 is: 1,033,749,618.30
Step by Step Solution
- Step 1: Write the proportion equation
1,724,817,637.80 : 2,587,226,456.70 = 689,166,412.20 : x - Step 2: Convert to fraction form
1,724,817,637.80/2,587,226,456.70 = 689,166,412.20/x - Step 3: Cross multiply
1,724,817,637.80x = 2,587,226,456.70 × 689,166,412.20 - Step 4: Simplify right side
1,724,817,637.80x = 1,783,029,574,712,857,600 - Step 5: Solve for x
x = 1,783,029,574,712,857,600/1,724,817,637.80 - Step 6: Final answer
x = 1,033,749,618.30
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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.