Home / 101,142,419.40-151,377,705.90-70,909,331.40

Finding the Fourth Proportional to 101,142,419.40, 151,377,705.90 and 70,909,331.40

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Solution

The fourth proportional to 101,142,419.40, 151,377,705.90 and 70,909,331.40 is: 106,128,486.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,142,419.40 : 151,377,705.90 = 70,909,331.40 : x
  2. Step 2: Convert to fraction form
    101,142,419.40/151,377,705.90 = 70,909,331.40/x
  3. Step 3: Cross multiply
    101,142,419.40x = 151,377,705.90 × 70,909,331.40
  4. Step 4: Simplify right side
    101,142,419.40x = 10,734,091,914,234,836
  5. Step 5: Solve for x
    x = 10,734,091,914,234,836/101,142,419.40
  6. Step 6: Final answer
    x = 106,128,486.72

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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.