Finding the Fourth Proportional to 1,152,752,961.08, 1,590,769,599.18 and 644,119,746.68
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Solution
The fourth proportional to 1,152,752,961.08, 1,590,769,599.18 and 644,119,746.68 is: 888,868,774.01
Step by Step Solution
- Step 1: Write the proportion equation
1,152,752,961.08 : 1,590,769,599.18 = 644,119,746.68 : x - Step 2: Convert to fraction form
1,152,752,961.08/1,590,769,599.18 = 644,119,746.68/x - Step 3: Cross multiply
1,152,752,961.08x = 1,590,769,599.18 × 644,119,746.68 - Step 4: Simplify right side
1,152,752,961.08x = 1,024,646,111,250,066,688 - Step 5: Solve for x
x = 1,024,646,111,250,066,688/1,152,752,961.08 - Step 6: Final answer
x = 888,868,774.01
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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.