Home / 3,118,046.40-4,302,780.48-1,957,111.20

Finding the Fourth Proportional to 3,118,046.40, 4,302,780.48 and 1,957,111.20

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Solution

The fourth proportional to 3,118,046.40, 4,302,780.48 and 1,957,111.20 is: 2,700,735.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,046.40 : 4,302,780.48 = 1,957,111.20 : x
  2. Step 2: Convert to fraction form
    3,118,046.40/4,302,780.48 = 1,957,111.20/x
  3. Step 3: Cross multiply
    3,118,046.40x = 4,302,780.48 × 1,957,111.20
  4. Step 4: Simplify right side
    3,118,046.40x = 8,421,019,868,549.38
  5. Step 5: Solve for x
    x = 8,421,019,868,549.38/3,118,046.40
  6. Step 6: Final answer
    x = 2,700,735.91

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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.