Home / 278,062,919.40-417,283,335.90-155,240,999.40

Finding the Fourth Proportional to 278,062,919.40, 417,283,335.90 and 155,240,999.40

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Solution

The fourth proportional to 278,062,919.40, 417,283,335.90 and 155,240,999.40 is: 232,966,992.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,062,919.40 : 417,283,335.90 = 155,240,999.40 : x
  2. Step 2: Convert to fraction form
    278,062,919.40/417,283,335.90 = 155,240,999.40/x
  3. Step 3: Cross multiply
    278,062,919.40x = 417,283,335.90 × 155,240,999.40
  4. Step 4: Simplify right side
    278,062,919.40x = 64,779,482,098,081,896
  5. Step 5: Solve for x
    x = 64,779,482,098,081,896/278,062,919.40
  6. Step 6: Final answer
    x = 232,966,992.64

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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.