Home / 12,219,834.24-16,863,465.60-7,638,854.40

Finding the Fourth Proportional to 12,219,834.24, 16,863,465.60 and 7,638,854.40

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Solution

The fourth proportional to 12,219,834.24, 16,863,465.60 and 7,638,854.40 is: 10,541,678.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219,834.24 : 16,863,465.60 = 7,638,854.40 : x
  2. Step 2: Convert to fraction form
    12,219,834.24/16,863,465.60 = 7,638,854.40/x
  3. Step 3: Cross multiply
    12,219,834.24x = 16,863,465.60 × 7,638,854.40
  4. Step 4: Simplify right side
    12,219,834.24x = 128,817,558,397,808.66
  5. Step 5: Solve for x
    x = 128,817,558,397,808.66/12,219,834.24
  6. Step 6: Final answer
    x = 10,541,678.05

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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.