Home / 12,641,831.81-18,955,504.73-3,885,830.13

Finding the Fourth Proportional to 12,641,831.81, 18,955,504.73 and 3,885,830.13

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Solution

The fourth proportional to 12,641,831.81, 18,955,504.73 and 3,885,830.13 is: 5,826,518.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,641,831.81 : 18,955,504.73 = 3,885,830.13 : x
  2. Step 2: Convert to fraction form
    12,641,831.81/18,955,504.73 = 3,885,830.13/x
  3. Step 3: Cross multiply
    12,641,831.81x = 18,955,504.73 × 3,885,830.13
  4. Step 4: Simplify right side
    12,641,831.81x = 73,657,871,389,762.38
  5. Step 5: Solve for x
    x = 73,657,871,389,762.38/12,641,831.81
  6. Step 6: Final answer
    x = 5,826,518.86

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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.