Home / 13,280,128,019.20-19,920,192,028.80-3,465,475,631.20

Finding the Fourth Proportional to 13,280,128,019.20, 19,920,192,028.80 and 3,465,475,631.20

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Solution

The fourth proportional to 13,280,128,019.20, 19,920,192,028.80 and 3,465,475,631.20 is: 5,198,213,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280,128,019.20 : 19,920,192,028.80 = 3,465,475,631.20 : x
  2. Step 2: Convert to fraction form
    13,280,128,019.20/19,920,192,028.80 = 3,465,475,631.20/x
  3. Step 3: Cross multiply
    13,280,128,019.20x = 19,920,192,028.80 × 3,465,475,631.20
  4. Step 4: Simplify right side
    13,280,128,019.20x = 69,032,940,044,630,884,352
  5. Step 5: Solve for x
    x = 69,032,940,044,630,884,352/13,280,128,019.20
  6. Step 6: Final answer
    x = 5,198,213,446.80

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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.