Home / 7,800,428.40-11,700,642.60-4,603,909.20

Finding the Fourth Proportional to 7,800,428.40, 11,700,642.60 and 4,603,909.20

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Solution

The fourth proportional to 7,800,428.40, 11,700,642.60 and 4,603,909.20 is: 6,905,863.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,800,428.40 : 11,700,642.60 = 4,603,909.20 : x
  2. Step 2: Convert to fraction form
    7,800,428.40/11,700,642.60 = 4,603,909.20/x
  3. Step 3: Cross multiply
    7,800,428.40x = 11,700,642.60 × 4,603,909.20
  4. Step 4: Simplify right side
    7,800,428.40x = 53,868,696,112,051.92
  5. Step 5: Solve for x
    x = 53,868,696,112,051.92/7,800,428.40
  6. Step 6: Final answer
    x = 6,905,863.80

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1.5x scale

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.