Home / 18,759,875.40-28,139,813.10-7,398,847.80

Finding the Fourth Proportional to 18,759,875.40, 28,139,813.10 and 7,398,847.80

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Solution

The fourth proportional to 18,759,875.40, 28,139,813.10 and 7,398,847.80 is: 11,098,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,759,875.40 : 28,139,813.10 = 7,398,847.80 : x
  2. Step 2: Convert to fraction form
    18,759,875.40/28,139,813.10 = 7,398,847.80/x
  3. Step 3: Cross multiply
    18,759,875.40x = 28,139,813.10 × 7,398,847.80
  4. Step 4: Simplify right side
    18,759,875.40x = 208,202,194,247,346.19
  5. Step 5: Solve for x
    x = 208,202,194,247,346.19/18,759,875.40
  6. Step 6: Final answer
    x = 11,098,271.70

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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.