Home / 268,452,240.93-402,417,205.26-128,356,291.98

Finding the Fourth Proportional to 268,452,240.93, 402,417,205.26 and 128,356,291.98

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Solution

The fourth proportional to 268,452,240.93, 402,417,205.26 and 128,356,291.98 is: 192,409,570.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,452,240.93 : 402,417,205.26 = 128,356,291.98 : x
  2. Step 2: Convert to fraction form
    268,452,240.93/402,417,205.26 = 128,356,291.98/x
  3. Step 3: Cross multiply
    268,452,240.93x = 402,417,205.26 × 128,356,291.98
  4. Step 4: Simplify right side
    268,452,240.93x = 51,652,780,296,128,152
  5. Step 5: Solve for x
    x = 51,652,780,296,128,152/268,452,240.93
  6. Step 6: Final answer
    x = 192,409,570.20

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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.