Finding the Fourth Proportional to 140,363,931.30, 210,559,966.65 and 48,235,535.70
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Solution
The fourth proportional to 140,363,931.30, 210,559,966.65 and 48,235,535.70 is: 72,358,138.55
Step by Step Solution
- Step 1: Write the proportion equation
140,363,931.30 : 210,559,966.65 = 48,235,535.70 : x - Step 2: Convert to fraction form
140,363,931.30/210,559,966.65 = 48,235,535.70/x - Step 3: Cross multiply
140,363,931.30x = 210,559,966.65 × 48,235,535.70 - Step 4: Simplify right side
140,363,931.30x = 10,156,472,788,336,886 - Step 5: Solve for x
x = 10,156,472,788,336,886/140,363,931.30 - Step 6: Final answer
x = 72,358,138.55
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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.