Finding the Fourth Proportional to 122,772,664,962.18, 169,426,540,219.32 and 69,308,637,480.18
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Solution
The fourth proportional to 122,772,664,962.18, 169,426,540,219.32 and 69,308,637,480.18 is: 95,646,067,951.68
Step by Step Solution
- Step 1: Write the proportion equation
122,772,664,962.18 : 169,426,540,219.32 = 69,308,637,480.18 : x - Step 2: Convert to fraction form
122,772,664,962.18/169,426,540,219.32 = 69,308,637,480.18/x - Step 3: Cross multiply
122,772,664,962.18x = 169,426,540,219.32 × 69,308,637,480.18 - Step 4: Simplify right side
122,772,664,962.18x = 11,742,722,655,581,984,784,384 - Step 5: Solve for x
x = 11,742,722,655,581,984,784,384/122,772,664,962.18 - Step 6: Final answer
x = 95,646,067,951.68
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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.