Home / 70,883,909.40-106,325,864.10-42,115,236.60

Finding the Fourth Proportional to 70,883,909.40, 106,325,864.10 and 42,115,236.60

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Solution

The fourth proportional to 70,883,909.40, 106,325,864.10 and 42,115,236.60 is: 63,172,854.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,883,909.40 : 106,325,864.10 = 42,115,236.60 : x
  2. Step 2: Convert to fraction form
    70,883,909.40/106,325,864.10 = 42,115,236.60/x
  3. Step 3: Cross multiply
    70,883,909.40x = 106,325,864.10 × 42,115,236.60
  4. Step 4: Simplify right side
    70,883,909.40x = 4,477,938,923,270,946
  5. Step 5: Solve for x
    x = 4,477,938,923,270,946/70,883,909.40
  6. Step 6: Final answer
    x = 63,172,854.90

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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.