Home / 142,134,960.60-196,142,635.62-79,411,541.40

Finding the Fourth Proportional to 142,134,960.60, 196,142,635.62 and 79,411,541.40

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Solution

The fourth proportional to 142,134,960.60, 196,142,635.62 and 79,411,541.40 is: 109,585,910.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,134,960.60 : 196,142,635.62 = 79,411,541.40 : x
  2. Step 2: Convert to fraction form
    142,134,960.60/196,142,635.62 = 79,411,541.40/x
  3. Step 3: Cross multiply
    142,134,960.60x = 196,142,635.62 × 79,411,541.40
  4. Step 4: Simplify right side
    142,134,960.60x = 15,575,989,028,842,746
  5. Step 5: Solve for x
    x = 15,575,989,028,842,746/142,134,960.60
  6. Step 6: Final answer
    x = 109,585,910.20

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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.