Home / 76,963,128.60-106,209,094.14-42,157,985.88

Finding the Fourth Proportional to 76,963,128.60, 106,209,094.14 and 42,157,985.88

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Solution

The fourth proportional to 76,963,128.60, 106,209,094.14 and 42,157,985.88 is: 58,178,007.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,963,128.60 : 106,209,094.14 = 42,157,985.88 : x
  2. Step 2: Convert to fraction form
    76,963,128.60/106,209,094.14 = 42,157,985.88/x
  3. Step 3: Cross multiply
    76,963,128.60x = 106,209,094.14 × 42,157,985.88
  4. Step 4: Simplify right side
    76,963,128.60x = 4,477,561,491,081,711
  5. Step 5: Solve for x
    x = 4,477,561,491,081,711/76,963,128.60
  6. Step 6: Final answer
    x = 58,178,007.74

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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.