Home / 12,640,359.38-17,438,732.49-7,341,152.19

Finding the Fourth Proportional to 12,640,359.38, 17,438,732.49 and 7,341,152.19

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Solution

The fourth proportional to 12,640,359.38, 17,438,732.49 and 7,341,152.19 is: 10,127,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,640,359.38 : 17,438,732.49 = 7,341,152.19 : x
  2. Step 2: Convert to fraction form
    12,640,359.38/17,438,732.49 = 7,341,152.19/x
  3. Step 3: Cross multiply
    12,640,359.38x = 17,438,732.49 × 7,341,152.19
  4. Step 4: Simplify right side
    12,640,359.38x = 128,020,389,209,787.64
  5. Step 5: Solve for x
    x = 128,020,389,209,787.64/12,640,359.38
  6. Step 6: Final answer
    x = 10,127,907.40

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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.