Finding the Fourth Proportional to 74,958,642,305.51, 111,658,885,009.20 and 70,898,637,005.99
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Solution
The fourth proportional to 74,958,642,305.51, 111,658,885,009.20 and 70,898,637,005.99 is: 105,611,074,497.54
Step by Step Solution
- Step 1: Write the proportion equation
74,958,642,305.51 : 111,658,885,009.20 = 70,898,637,005.99 : x - Step 2: Convert to fraction form
74,958,642,305.51/111,658,885,009.20 = 70,898,637,005.99/x - Step 3: Cross multiply
74,958,642,305.51x = 111,658,885,009.20 × 70,898,637,005.99 - Step 4: Simplify right side
74,958,642,305.51x = 7,916,462,756,760,850,006,016 - Step 5: Solve for x
x = 7,916,462,756,760,850,006,016/74,958,642,305.51 - Step 6: Final answer
x = 105,611,074,497.54
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.