Home / 12,879,946.60-19,319,919.90-9,100,810.60

Finding the Fourth Proportional to 12,879,946.60, 19,319,919.90 and 9,100,810.60

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Solution

The fourth proportional to 12,879,946.60, 19,319,919.90 and 9,100,810.60 is: 13,651,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879,946.60 : 19,319,919.90 = 9,100,810.60 : x
  2. Step 2: Convert to fraction form
    12,879,946.60/19,319,919.90 = 9,100,810.60/x
  3. Step 3: Cross multiply
    12,879,946.60x = 19,319,919.90 × 9,100,810.60
  4. Step 4: Simplify right side
    12,879,946.60x = 175,826,931,817,070.91
  5. Step 5: Solve for x
    x = 175,826,931,817,070.91/12,879,946.60
  6. Step 6: Final answer
    x = 13,651,215.90

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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.