Home / 145,394,428.40-218,091,642.60-139,654,865.60

Finding the Fourth Proportional to 145,394,428.40, 218,091,642.60 and 139,654,865.60

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Solution

The fourth proportional to 145,394,428.40, 218,091,642.60 and 139,654,865.60 is: 209,482,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,394,428.40 : 218,091,642.60 = 139,654,865.60 : x
  2. Step 2: Convert to fraction form
    145,394,428.40/218,091,642.60 = 139,654,865.60/x
  3. Step 3: Cross multiply
    145,394,428.40x = 218,091,642.60 × 139,654,865.60
  4. Step 4: Simplify right side
    145,394,428.40x = 30,457,559,035,786,232
  5. Step 5: Solve for x
    x = 30,457,559,035,786,232/145,394,428.40
  6. Step 6: Final answer
    x = 209,482,298.40

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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.