Home / 12,455,688.40-18,683,532.60-7,332,859.60

Finding the Fourth Proportional to 12,455,688.40, 18,683,532.60 and 7,332,859.60

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Solution

The fourth proportional to 12,455,688.40, 18,683,532.60 and 7,332,859.60 is: 10,999,289.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,688.40 : 18,683,532.60 = 7,332,859.60 : x
  2. Step 2: Convert to fraction form
    12,455,688.40/18,683,532.60 = 7,332,859.60/x
  3. Step 3: Cross multiply
    12,455,688.40x = 18,683,532.60 × 7,332,859.60
  4. Step 4: Simplify right side
    12,455,688.40x = 137,003,721,387,822.97
  5. Step 5: Solve for x
    x = 137,003,721,387,822.97/12,455,688.40
  6. Step 6: Final answer
    x = 10,999,289.40

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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.