Home / 291,345,751.60-437,018,627.40-259,601,009.20

Finding the Fourth Proportional to 291,345,751.60, 437,018,627.40 and 259,601,009.20

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Solution

The fourth proportional to 291,345,751.60, 437,018,627.40 and 259,601,009.20 is: 389,401,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,345,751.60 : 437,018,627.40 = 259,601,009.20 : x
  2. Step 2: Convert to fraction form
    291,345,751.60/437,018,627.40 = 259,601,009.20/x
  3. Step 3: Cross multiply
    291,345,751.60x = 437,018,627.40 × 259,601,009.20
  4. Step 4: Simplify right side
    291,345,751.60x = 113,450,476,712,238,768
  5. Step 5: Solve for x
    x = 113,450,476,712,238,768/291,345,751.60
  6. Step 6: Final answer
    x = 389,401,513.80

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1.5x scale

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.