Home / 12,789,424.60-19,184,136.90-9,220,240.60

Finding the Fourth Proportional to 12,789,424.60, 19,184,136.90 and 9,220,240.60

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Solution

The fourth proportional to 12,789,424.60, 19,184,136.90 and 9,220,240.60 is: 13,830,360.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789,424.60 : 19,184,136.90 = 9,220,240.60 : x
  2. Step 2: Convert to fraction form
    12,789,424.60/19,184,136.90 = 9,220,240.60/x
  3. Step 3: Cross multiply
    12,789,424.60x = 19,184,136.90 × 9,220,240.60
  4. Step 4: Simplify right side
    12,789,424.60x = 176,882,357,921,338.12
  5. Step 5: Solve for x
    x = 176,882,357,921,338.12/12,789,424.60
  6. Step 6: Final answer
    x = 13,830,360.90

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Double scale
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1.5x scale

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.