Home / 659,268,027.75-909,756,467.64-391,355,312.10

Finding the Fourth Proportional to 659,268,027.75, 909,756,467.64 and 391,355,312.10

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Solution

The fourth proportional to 659,268,027.75, 909,756,467.64 and 391,355,312.10 is: 540,050,497.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,268,027.75 : 909,756,467.64 = 391,355,312.10 : x
  2. Step 2: Convert to fraction form
    659,268,027.75/909,756,467.64 = 391,355,312.10/x
  3. Step 3: Cross multiply
    659,268,027.75x = 909,756,467.64 × 391,355,312.10
  4. Step 4: Simplify right side
    659,268,027.75x = 356,038,026,326,727,040
  5. Step 5: Solve for x
    x = 356,038,026,326,727,040/659,268,027.75
  6. Step 6: Final answer
    x = 540,050,497.43

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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.