Home / 278,063,863.40-417,284,751.90-155,241,943.40

Finding the Fourth Proportional to 278,063,863.40, 417,284,751.90 and 155,241,943.40

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Solution

The fourth proportional to 278,063,863.40, 417,284,751.90 and 155,241,943.40 is: 232,968,408.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,063,863.40 : 417,284,751.90 = 155,241,943.40 : x
  2. Step 2: Convert to fraction form
    278,063,863.40/417,284,751.90 = 155,241,943.40/x
  3. Step 3: Cross multiply
    278,063,863.40x = 417,284,751.90 × 155,241,943.40
  4. Step 4: Simplify right side
    278,063,863.40x = 64,780,095,836,142,840
  5. Step 5: Solve for x
    x = 64,780,095,836,142,840/278,063,863.40
  6. Step 6: Final answer
    x = 232,968,408.93

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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.