Finding the Fourth Proportional to 1,125,441,513.29, 1,553,118,407.42 and 623,658,678.63
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Solution
The fourth proportional to 1,125,441,513.29, 1,553,118,407.42 and 623,658,678.63 is: 860,654,029.81
Step by Step Solution
- Step 1: Write the proportion equation
1,125,441,513.29 : 1,553,118,407.42 = 623,658,678.63 : x - Step 2: Convert to fraction form
1,125,441,513.29/1,553,118,407.42 = 623,658,678.63/x - Step 3: Cross multiply
1,125,441,513.29x = 1,553,118,407.42 × 623,658,678.63 - Step 4: Simplify right side
1,125,441,513.29x = 968,615,773,724,368,896 - Step 5: Solve for x
x = 968,615,773,724,368,896/1,125,441,513.29 - Step 6: Final answer
x = 860,654,029.81
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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.