Home / 12,938,831.30-19,374,032.55-10,368,085.70

Finding the Fourth Proportional to 12,938,831.30, 19,374,032.55 and 10,368,085.70

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Solution

The fourth proportional to 12,938,831.30, 19,374,032.55 and 10,368,085.70 is: 15,524,712.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,831.30 : 19,374,032.55 = 10,368,085.70 : x
  2. Step 2: Convert to fraction form
    12,938,831.30/19,374,032.55 = 10,368,085.70/x
  3. Step 3: Cross multiply
    12,938,831.30x = 19,374,032.55 × 10,368,085.70
  4. Step 4: Simplify right side
    12,938,831.30x = 200,871,629,832,989.53
  5. Step 5: Solve for x
    x = 200,871,629,832,989.53/12,938,831.30
  6. Step 6: Final answer
    x = 15,524,712.02

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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.