Finding the Fourth Proportional to 1,257,125,983.02, 1,885,626,291.93 and 470,121,776.73
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Solution
The fourth proportional to 1,257,125,983.02, 1,885,626,291.93 and 470,121,776.73 is: 705,159,223.96
Step by Step Solution
- Step 1: Write the proportion equation
1,257,125,983.02 : 1,885,626,291.93 = 470,121,776.73 : x - Step 2: Convert to fraction form
1,257,125,983.02/1,885,626,291.93 = 470,121,776.73/x - Step 3: Cross multiply
1,257,125,983.02x = 1,885,626,291.93 × 470,121,776.73 - Step 4: Simplify right side
1,257,125,983.02x = 886,473,982,610,933,376 - Step 5: Solve for x
x = 886,473,982,610,933,376/1,257,125,983.02 - Step 6: Final answer
x = 705,159,223.96
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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.