Home / 13,220,003.60-19,871,995.80-12,464,176.40

Finding the Fourth Proportional to 13,220,003.60, 19,871,995.80 and 12,464,176.40

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Solution

The fourth proportional to 13,220,003.60, 19,871,995.80 and 12,464,176.40 is: 18,735,854.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220,003.60 : 19,871,995.80 = 12,464,176.40 : x
  2. Step 2: Convert to fraction form
    13,220,003.60/19,871,995.80 = 12,464,176.40/x
  3. Step 3: Cross multiply
    13,220,003.60x = 19,871,995.80 × 12,464,176.40
  4. Step 4: Simplify right side
    13,220,003.60x = 247,688,061,071,259.12
  5. Step 5: Solve for x
    x = 247,688,061,071,259.12/13,220,003.60
  6. Step 6: Final answer
    x = 18,735,854.28

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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.