Finding the Fourth Proportional to 1,558,499,966.13, 2,150,943,925.32 and 955,563,931.70
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Solution
The fourth proportional to 1,558,499,966.13, 2,150,943,925.32 and 955,563,931.70 is: 1,318,809,418.54
Step by Step Solution
- Step 1: Write the proportion equation
1,558,499,966.13 : 2,150,943,925.32 = 955,563,931.70 : x - Step 2: Convert to fraction form
1,558,499,966.13/2,150,943,925.32 = 955,563,931.70/x - Step 3: Cross multiply
1,558,499,966.13x = 2,150,943,925.32 × 955,563,931.70 - Step 4: Simplify right side
1,558,499,966.13x = 2,055,364,434,134,255,872 - Step 5: Solve for x
x = 2,055,364,434,134,255,872/1,558,499,966.13 - Step 6: Final answer
x = 1,318,809,418.54
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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.