Home / 12,953,357.67-17,868,139.95-8,369,679.05

Finding the Fourth Proportional to 12,953,357.67, 17,868,139.95 and 8,369,679.05

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Solution

The fourth proportional to 12,953,357.67, 17,868,139.95 and 8,369,679.05 is: 11,545,315.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953,357.67 : 17,868,139.95 = 8,369,679.05 : x
  2. Step 2: Convert to fraction form
    12,953,357.67/17,868,139.95 = 8,369,679.05/x
  3. Step 3: Cross multiply
    12,953,357.67x = 17,868,139.95 × 8,369,679.05
  4. Step 4: Simplify right side
    12,953,357.67x = 149,550,596,470,793.97
  5. Step 5: Solve for x
    x = 149,550,596,470,793.97/12,953,357.67
  6. Step 6: Final answer
    x = 11,545,315.14

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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.