Home / 10,342,953.92-15,493,280.16-8,430,680

Finding the Fourth Proportional to 10,342,953.92, 15,493,280.16 and 8,430,680

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Solution

The fourth proportional to 10,342,953.92, 15,493,280.16 and 8,430,680 is: 12,628,779.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,342,953.92 : 15,493,280.16 = 8,430,680 : x
  2. Step 2: Convert to fraction form
    10,342,953.92/15,493,280.16 = 8,430,680/x
  3. Step 3: Cross multiply
    10,342,953.92x = 15,493,280.16 × 8,430,680
  4. Step 4: Simplify right side
    10,342,953.92x = 130,618,887,179,308.80
  5. Step 5: Solve for x
    x = 130,618,887,179,308.80/10,342,953.92
  6. Step 6: Final answer
    x = 12,628,779.77

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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.