Home / 13,186,683.45-18,191,826.45-7,956,774.52

Finding the Fourth Proportional to 13,186,683.45, 18,191,826.45 and 7,956,774.52

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Solution

The fourth proportional to 13,186,683.45, 18,191,826.45 and 7,956,774.52 is: 10,976,851.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186,683.45 : 18,191,826.45 = 7,956,774.52 : x
  2. Step 2: Convert to fraction form
    13,186,683.45/18,191,826.45 = 7,956,774.52/x
  3. Step 3: Cross multiply
    13,186,683.45x = 18,191,826.45 × 7,956,774.52
  4. Step 4: Simplify right side
    13,186,683.45x = 144,748,261,129,838.19
  5. Step 5: Solve for x
    x = 144,748,261,129,838.19/13,186,683.45
  6. Step 6: Final answer
    x = 10,976,851.13

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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.