Finding the Fourth Proportional to 18,718,316,981.60, 28,077,473,767.44 and 8,237,533,398.08
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Solution
The fourth proportional to 18,718,316,981.60, 28,077,473,767.44 and 8,237,533,398.08 is: 12,356,299,346.80
Step by Step Solution
- Step 1: Write the proportion equation
18,718,316,981.60 : 28,077,473,767.44 = 8,237,533,398.08 : x - Step 2: Convert to fraction form
18,718,316,981.60/28,077,473,767.44 = 8,237,533,398.08/x - Step 3: Cross multiply
18,718,316,981.60x = 28,077,473,767.44 × 8,237,533,398.08 - Step 4: Simplify right side
18,718,316,981.60x = 231,289,127,893,002,059,776 - Step 5: Solve for x
x = 231,289,127,893,002,059,776/18,718,316,981.60 - Step 6: Final answer
x = 12,356,299,346.80
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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.