Home / 19,499,901.76-26,918,555.13-12,888,472.31

Finding the Fourth Proportional to 19,499,901.76, 26,918,555.13 and 12,888,472.31

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Solution

The fourth proportional to 19,499,901.76, 26,918,555.13 and 12,888,472.31 is: 17,791,835.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,499,901.76 : 26,918,555.13 = 12,888,472.31 : x
  2. Step 2: Convert to fraction form
    19,499,901.76/26,918,555.13 = 12,888,472.31/x
  3. Step 3: Cross multiply
    19,499,901.76x = 26,918,555.13 × 12,888,472.31
  4. Step 4: Simplify right side
    19,499,901.76x = 346,939,052,219,178.31
  5. Step 5: Solve for x
    x = 346,939,052,219,178.31/19,499,901.76
  6. Step 6: Final answer
    x = 17,791,835.91

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1.5x scale

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.