Home / 42,068,108.64-63,120,177.36-13,316,584.80

Finding the Fourth Proportional to 42,068,108.64, 63,120,177.36 and 13,316,584.80

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Solution

The fourth proportional to 42,068,108.64, 63,120,177.36 and 13,316,584.80 is: 19,980,579.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,068,108.64 : 63,120,177.36 = 13,316,584.80 : x
  2. Step 2: Convert to fraction form
    42,068,108.64/63,120,177.36 = 13,316,584.80/x
  3. Step 3: Cross multiply
    42,068,108.64x = 63,120,177.36 × 13,316,584.80
  4. Step 4: Simplify right side
    42,068,108.64x = 840,545,194,405,480.12
  5. Step 5: Solve for x
    x = 840,545,194,405,480.12/42,068,108.64
  6. Step 6: Final answer
    x = 19,980,579.63

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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.