Home / 280,629,779.46-387,271,601.54-155,190,463.32

Finding the Fourth Proportional to 280,629,779.46, 387,271,601.54 and 155,190,463.32

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Solution

The fourth proportional to 280,629,779.46, 387,271,601.54 and 155,190,463.32 is: 214,164,225.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,629,779.46 : 387,271,601.54 = 155,190,463.32 : x
  2. Step 2: Convert to fraction form
    280,629,779.46/387,271,601.54 = 155,190,463.32/x
  3. Step 3: Cross multiply
    280,629,779.46x = 387,271,601.54 × 155,190,463.32
  4. Step 4: Simplify right side
    280,629,779.46x = 60,100,859,273,671,024
  5. Step 5: Solve for x
    x = 60,100,859,273,671,024/280,629,779.46
  6. Step 6: Final answer
    x = 214,164,225.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.