Finding the Fourth Proportional to 122,772,664,975.68, 169,426,540,237.95 and 69,308,637,493.68
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Solution
The fourth proportional to 122,772,664,975.68, 169,426,540,237.95 and 69,308,637,493.68 is: 95,646,067,970.31
Step by Step Solution
- Step 1: Write the proportion equation
122,772,664,975.68 : 169,426,540,237.95 = 69,308,637,493.68 : x - Step 2: Convert to fraction form
122,772,664,975.68/169,426,540,237.95 = 69,308,637,493.68/x - Step 3: Cross multiply
122,772,664,975.68x = 169,426,540,237.95 × 69,308,637,493.68 - Step 4: Simplify right side
122,772,664,975.68x = 11,742,722,659,160,464,293,888 - Step 5: Solve for x
x = 11,742,722,659,160,464,293,888/122,772,664,975.68 - Step 6: Final answer
x = 95,646,067,970.31
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1.5x scale
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.