Home / 12,440,903.60-18,661,355.40-5,260,545.20

Finding the Fourth Proportional to 12,440,903.60, 18,661,355.40 and 5,260,545.20

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Solution

The fourth proportional to 12,440,903.60, 18,661,355.40 and 5,260,545.20 is: 7,890,817.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440,903.60 : 18,661,355.40 = 5,260,545.20 : x
  2. Step 2: Convert to fraction form
    12,440,903.60/18,661,355.40 = 5,260,545.20/x
  3. Step 3: Cross multiply
    12,440,903.60x = 18,661,355.40 × 5,260,545.20
  4. Step 4: Simplify right side
    12,440,903.60x = 98,168,903,574,964.08
  5. Step 5: Solve for x
    x = 98,168,903,574,964.08/12,440,903.60
  6. Step 6: Final answer
    x = 7,890,817.80

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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.