Home / 85,556,145.30-128,277,539.55-47,236,017.30

Finding the Fourth Proportional to 85,556,145.30, 128,277,539.55 and 47,236,017.30

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Solution

The fourth proportional to 85,556,145.30, 128,277,539.55 and 47,236,017.30 is: 70,822,733.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,556,145.30 : 128,277,539.55 = 47,236,017.30 : x
  2. Step 2: Convert to fraction form
    85,556,145.30/128,277,539.55 = 47,236,017.30/x
  3. Step 3: Cross multiply
    85,556,145.30x = 128,277,539.55 × 47,236,017.30
  4. Step 4: Simplify right side
    85,556,145.30x = 6,059,320,077,385,234
  5. Step 5: Solve for x
    x = 6,059,320,077,385,234/85,556,145.30
  6. Step 6: Final answer
    x = 70,822,733.49

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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.