Home / 288,809,525.76-398,533,455.36-158,429,333.76

Finding the Fourth Proportional to 288,809,525.76, 398,533,455.36 and 158,429,333.76

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Solution

The fourth proportional to 288,809,525.76, 398,533,455.36 and 158,429,333.76 is: 218,619,485.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,809,525.76 : 398,533,455.36 = 158,429,333.76 : x
  2. Step 2: Convert to fraction form
    288,809,525.76/398,533,455.36 = 158,429,333.76/x
  3. Step 3: Cross multiply
    288,809,525.76x = 398,533,455.36 × 158,429,333.76
  4. Step 4: Simplify right side
    288,809,525.76x = 63,139,389,813,755,496
  5. Step 5: Solve for x
    x = 63,139,389,813,755,496/288,809,525.76
  6. Step 6: Final answer
    x = 218,619,485.10

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1.5x scale

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.