Finding the Fourth Proportional to 1,931,043,956.70, 2,896,565,935.05 and 704,252,430.30
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Solution
The fourth proportional to 1,931,043,956.70, 2,896,565,935.05 and 704,252,430.30 is: 1,056,378,645.45
Step by Step Solution
- Step 1: Write the proportion equation
1,931,043,956.70 : 2,896,565,935.05 = 704,252,430.30 : x - Step 2: Convert to fraction form
1,931,043,956.70/2,896,565,935.05 = 704,252,430.30/x - Step 3: Cross multiply
1,931,043,956.70x = 2,896,565,935.05 × 704,252,430.30 - Step 4: Simplify right side
1,931,043,956.70x = 2,039,913,599,283,154,432 - Step 5: Solve for x
x = 2,039,913,599,283,154,432/1,931,043,956.70 - Step 6: Final answer
x = 1,056,378,645.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.