Home / 39,871,831.32-55,023,118.74-21,537,117

Finding the Fourth Proportional to 39,871,831.32, 55,023,118.74 and 21,537,117

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Solution

The fourth proportional to 39,871,831.32, 55,023,118.74 and 21,537,117 is: 29,721,216.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,871,831.32 : 55,023,118.74 = 21,537,117 : x
  2. Step 2: Convert to fraction form
    39,871,831.32/55,023,118.74 = 21,537,117/x
  3. Step 3: Cross multiply
    39,871,831.32x = 55,023,118.74 × 21,537,117
  4. Step 4: Simplify right side
    39,871,831.32x = 1,185,039,346,008,272.50
  5. Step 5: Solve for x
    x = 1,185,039,346,008,272.50/39,871,831.32
  6. Step 6: Final answer
    x = 29,721,216.88

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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.