Finding the Fourth Proportional to 1,125,441,551.94, 1,553,118,460.83 and 623,658,717.42
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Solution
The fourth proportional to 1,125,441,551.94, 1,553,118,460.83 and 623,658,717.42 is: 860,654,083.38
Step by Step Solution
- Step 1: Write the proportion equation
1,125,441,551.94 : 1,553,118,460.83 = 623,658,717.42 : x - Step 2: Convert to fraction form
1,125,441,551.94/1,553,118,460.83 = 623,658,717.42/x - Step 3: Cross multiply
1,125,441,551.94x = 1,553,118,460.83 × 623,658,717.42 - Step 4: Simplify right side
1,125,441,551.94x = 968,615,867,282,562,176 - Step 5: Solve for x
x = 968,615,867,282,562,176/1,125,441,551.94 - Step 6: Final answer
x = 860,654,083.38
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Double scale
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1.5x scale
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.