Home / 12,229,641.64-18,349,490.95-5,402,611.72

Finding the Fourth Proportional to 12,229,641.64, 18,349,490.95 and 5,402,611.72

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Solution

The fourth proportional to 12,229,641.64, 18,349,490.95 and 5,402,611.72 is: 8,106,138.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,229,641.64 : 18,349,490.95 = 5,402,611.72 : x
  2. Step 2: Convert to fraction form
    12,229,641.64/18,349,490.95 = 5,402,611.72/x
  3. Step 3: Cross multiply
    12,229,641.64x = 18,349,490.95 × 5,402,611.72
  4. Step 4: Simplify right side
    12,229,641.64x = 99,135,174,871,934.28
  5. Step 5: Solve for x
    x = 99,135,174,871,934.28/12,229,641.64
  6. Step 6: Final answer
    x = 8,106,138.98

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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.