Finding the Fourth Proportional to 979,497,154.32, 1,351,801,549.80 and 731,548,041.36
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Solution
The fourth proportional to 979,497,154.32, 1,351,801,549.80 and 731,548,041.36 is: 1,009,607,604.99
Step by Step Solution
- Step 1: Write the proportion equation
979,497,154.32 : 1,351,801,549.80 = 731,548,041.36 : x - Step 2: Convert to fraction form
979,497,154.32/1,351,801,549.80 = 731,548,041.36/x - Step 3: Cross multiply
979,497,154.32x = 1,351,801,549.80 × 731,548,041.36 - Step 4: Simplify right side
979,497,154.32x = 988,907,776,063,602,432 - Step 5: Solve for x
x = 988,907,776,063,602,432/979,497,154.32 - Step 6: Final answer
x = 1,009,607,604.99
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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.