Home / 28,401,904,357.20-42,602,856,535.80-12,892,330,213.20

Finding the Fourth Proportional to 28,401,904,357.20, 42,602,856,535.80 and 12,892,330,213.20

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Solution

The fourth proportional to 28,401,904,357.20, 42,602,856,535.80 and 12,892,330,213.20 is: 19,338,495,319.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,401,904,357.20 : 42,602,856,535.80 = 12,892,330,213.20 : x
  2. Step 2: Convert to fraction form
    28,401,904,357.20/42,602,856,535.80 = 12,892,330,213.20/x
  3. Step 3: Cross multiply
    28,401,904,357.20x = 42,602,856,535.80 × 12,892,330,213.20
  4. Step 4: Simplify right side
    28,401,904,357.20x = 549,250,094,485,119,500,288
  5. Step 5: Solve for x
    x = 549,250,094,485,119,500,288/28,401,904,357.20
  6. Step 6: Final answer
    x = 19,338,495,319.80

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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.