Home / 51,011,782.08-70,392,742.20-28,688,106.12

Finding the Fourth Proportional to 51,011,782.08, 70,392,742.20 and 28,688,106.12

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Solution

The fourth proportional to 51,011,782.08, 70,392,742.20 and 28,688,106.12 is: 39,587,608.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,011,782.08 : 70,392,742.20 = 28,688,106.12 : x
  2. Step 2: Convert to fraction form
    51,011,782.08/70,392,742.20 = 28,688,106.12/x
  3. Step 3: Cross multiply
    51,011,782.08x = 70,392,742.20 × 28,688,106.12
  4. Step 4: Simplify right side
    51,011,782.08x = 2,019,434,458,311,402.50
  5. Step 5: Solve for x
    x = 2,019,434,458,311,402.50/51,011,782.08
  6. Step 6: Final answer
    x = 39,587,608.51

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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.