Home / 492,043,547.80-738,073,194.90-128,537,903.80

Finding the Fourth Proportional to 492,043,547.80, 738,073,194.90 and 128,537,903.80

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Solution

The fourth proportional to 492,043,547.80, 738,073,194.90 and 128,537,903.80 is: 192,808,912.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,043,547.80 : 738,073,194.90 = 128,537,903.80 : x
  2. Step 2: Convert to fraction form
    492,043,547.80/738,073,194.90 = 128,537,903.80/x
  3. Step 3: Cross multiply
    492,043,547.80x = 738,073,194.90 × 128,537,903.80
  4. Step 4: Simplify right side
    492,043,547.80x = 94,870,381,323,414,848
  5. Step 5: Solve for x
    x = 94,870,381,323,414,848/492,043,547.80
  6. Step 6: Final answer
    x = 192,808,912.44

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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.