Finding the Fourth Proportional to 917,885,873.80, 1,376,828,810.70 and 736,487,345.80
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Solution
The fourth proportional to 917,885,873.80, 1,376,828,810.70 and 736,487,345.80 is: 1,104,731,018.70
Step by Step Solution
- Step 1: Write the proportion equation
917,885,873.80 : 1,376,828,810.70 = 736,487,345.80 : x - Step 2: Convert to fraction form
917,885,873.80/1,376,828,810.70 = 736,487,345.80/x - Step 3: Cross multiply
917,885,873.80x = 1,376,828,810.70 × 736,487,345.80 - Step 4: Simplify right side
917,885,873.80x = 1,014,016,996,413,413,632 - Step 5: Solve for x
x = 1,014,016,996,413,413,632/917,885,873.80 - Step 6: Final answer
x = 1,104,731,018.70
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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.