Home / 13,157,410.80-18,152,408.08-7,931,574.28

Finding the Fourth Proportional to 13,157,410.80, 18,152,408.08 and 7,931,574.28

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Solution

The fourth proportional to 13,157,410.80, 18,152,408.08 and 7,931,574.28 is: 10,942,667.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,157,410.80 : 18,152,408.08 = 7,931,574.28 : x
  2. Step 2: Convert to fraction form
    13,157,410.80/18,152,408.08 = 7,931,574.28/x
  3. Step 3: Cross multiply
    13,157,410.80x = 18,152,408.08 × 7,931,574.28
  4. Step 4: Simplify right side
    13,157,410.80x = 143,977,173,047,392.19
  5. Step 5: Solve for x
    x = 143,977,173,047,392.19/13,157,410.80
  6. Step 6: Final answer
    x = 10,942,667.61

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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.