Finding the Fourth Proportional to 135,961,927,980.21, 187,628,043,931.04 and 74,163,844,367.58
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Solution
The fourth proportional to 135,961,927,980.21, 187,628,043,931.04 and 74,163,844,367.58 is: 102,346,423,412.88
Step by Step Solution
- Step 1: Write the proportion equation
135,961,927,980.21 : 187,628,043,931.04 = 74,163,844,367.58 : x - Step 2: Convert to fraction form
135,961,927,980.21/187,628,043,931.04 = 74,163,844,367.58/x - Step 3: Cross multiply
135,961,927,980.21x = 187,628,043,931.04 × 74,163,844,367.58 - Step 4: Simplify right side
135,961,927,980.21x = 13,915,217,049,094,176,374,784 - Step 5: Solve for x
x = 13,915,217,049,094,176,374,784/135,961,927,980.21 - Step 6: Final answer
x = 102,346,423,412.88
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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.