Home / 7,140,760.40-9,854,238.12-3,921,496.40

Finding the Fourth Proportional to 7,140,760.40, 9,854,238.12 and 3,921,496.40

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Solution

The fourth proportional to 7,140,760.40, 9,854,238.12 and 3,921,496.40 is: 5,411,658.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140,760.40 : 9,854,238.12 = 3,921,496.40 : x
  2. Step 2: Convert to fraction form
    7,140,760.40/9,854,238.12 = 3,921,496.40/x
  3. Step 3: Cross multiply
    7,140,760.40x = 9,854,238.12 × 3,921,496.40
  4. Step 4: Simplify right side
    7,140,760.40x = 38,643,359,312,322.77
  5. Step 5: Solve for x
    x = 38,643,359,312,322.77/7,140,760.40
  6. Step 6: Final answer
    x = 5,411,658.86

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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.