Finding the Fourth Proportional to 138,518,095,252.83, 207,808,473,194.54 and 74,774,072,937.18
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Solution
The fourth proportional to 138,518,095,252.83, 207,808,473,194.54 and 74,774,072,937.18 is: 112,178,021,963.49
Step by Step Solution
- Step 1: Write the proportion equation
138,518,095,252.83 : 207,808,473,194.54 = 74,774,072,937.18 : x - Step 2: Convert to fraction form
138,518,095,252.83/207,808,473,194.54 = 74,774,072,937.18/x - Step 3: Cross multiply
138,518,095,252.83x = 207,808,473,194.54 × 74,774,072,937.18 - Step 4: Simplify right side
138,518,095,252.83x = 15,538,685,931,612,547,317,760 - Step 5: Solve for x
x = 15,538,685,931,612,547,317,760/138,518,095,252.83 - Step 6: Final answer
x = 112,178,021,963.49
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1.5x scale
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.