Finding the Fourth Proportional to 1,125,252,981.72, 1,552,828,562.10 and 623,459,935.08
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Solution
The fourth proportional to 1,125,252,981.72, 1,552,828,562.10 and 623,459,935.08 is: 860,363,322.95
Step by Step Solution
- Step 1: Write the proportion equation
1,125,252,981.72 : 1,552,828,562.10 = 623,459,935.08 : x - Step 2: Convert to fraction form
1,125,252,981.72/1,552,828,562.10 = 623,459,935.08/x - Step 3: Cross multiply
1,125,252,981.72x = 1,552,828,562.10 × 623,459,935.08 - Step 4: Simplify right side
1,125,252,981.72x = 968,126,394,517,235,712 - Step 5: Solve for x
x = 968,126,394,517,235,712/1,125,252,981.72 - Step 6: Final answer
x = 860,363,322.95
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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.