Home / 13,200,346.89-18,217,320.55-7,399,130.13

Finding the Fourth Proportional to 13,200,346.89, 18,217,320.55 and 7,399,130.13

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Solution

The fourth proportional to 13,200,346.89, 18,217,320.55 and 7,399,130.13 is: 10,211,271.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200,346.89 : 18,217,320.55 = 7,399,130.13 : x
  2. Step 2: Convert to fraction form
    13,200,346.89/18,217,320.55 = 7,399,130.13/x
  3. Step 3: Cross multiply
    13,200,346.89x = 18,217,320.55 × 7,399,130.13
  4. Step 4: Simplify right side
    13,200,346.89x = 134,792,325,350,875.34
  5. Step 5: Solve for x
    x = 134,792,325,350,875.34/13,200,346.89
  6. Step 6: Final answer
    x = 10,211,271.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.