Home / 84,012,807-126,019,210.56-20,187,399

Finding the Fourth Proportional to 84,012,807, 126,019,210.56 and 20,187,399

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Solution

The fourth proportional to 84,012,807, 126,019,210.56 and 20,187,399 is: 30,281,098.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,012,807 : 126,019,210.56 = 20,187,399 : x
  2. Step 2: Convert to fraction form
    84,012,807/126,019,210.56 = 20,187,399/x
  3. Step 3: Cross multiply
    84,012,807x = 126,019,210.56 × 20,187,399
  4. Step 4: Simplify right side
    84,012,807x = 2,544,000,085,239,733.50
  5. Step 5: Solve for x
    x = 2,544,000,085,239,733.50/84,012,807
  6. Step 6: Final answer
    x = 30,281,098.51

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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.