Home / 145,394,465.40-218,091,698.10-139,654,902.60

Finding the Fourth Proportional to 145,394,465.40, 218,091,698.10 and 139,654,902.60

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Solution

The fourth proportional to 145,394,465.40, 218,091,698.10 and 139,654,902.60 is: 209,482,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,394,465.40 : 218,091,698.10 = 139,654,902.60 : x
  2. Step 2: Convert to fraction form
    145,394,465.40/218,091,698.10 = 139,654,902.60/x
  3. Step 3: Cross multiply
    145,394,465.40x = 218,091,698.10 × 139,654,902.60
  4. Step 4: Simplify right side
    145,394,465.40x = 30,457,574,856,024,104
  5. Step 5: Solve for x
    x = 30,457,574,856,024,104/145,394,465.40
  6. Step 6: Final answer
    x = 209,482,353.90

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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.